All notable changes to the library should be put here

• BREAKING: Rename JanetClient::with_default_env -> JanetClient::load_env_default
• BREAKING: Rename JanetClient::with_replacements -> JanetClient::load_env_replacements
• Add catch arg to janet_fn attribute macro that adds code to catch Rust panics and transform them into Janet panics
• Add two new functions to initialize JanetClient: JanetClient::init_with_replacements and JanetClient::init_with_default_env
• Add JanetFile::temp
• Fix tuple::{IntoIter, Iter}::size_hint implementation
• Migrate to Rust 2021

• Add the trait JanetArgs that extend functionality of [Janet] used in Rust defined Janet functions
• Add the trait JanetTypeName that defines the name of the types displayed janet messages
• Add bad_slot! macro to shorten and help developing Rust defined Janet functions

• BREAKING: Make JanetGc::collect an unsafe function
• BREAKING: Remove JanetEnvironment::add_def_with_doc, JanetEnvironment::add_var_with_doc, JanetEnvironment::add_c_func_with_doc and JanetClient functions with the same names
• BREAKING: Remove util::def, util::var, util::c_func
• BREAKING: Rename JanetEnviornment::add_c_func to JanetEnvironment::add_c_fn JanetEnvironment::add_c_fn
• Add JanetFile type
• Add JanetRng type
• Add JanetTable::try_insert and related error type
• Add DefOptions, VarOptions, CFunOptions to interact with the Janet environment
• Add declare_janet_mod macro to generate the machinery that Janet requires do create a Janet native module
  • It satisfies the same purpose as janet_mod, but it can get the documentation string from the function doc-comments and, for Janet versions above 1.17.0, it also add source map information for Janet
• Add janet_abstract::register function to register an abstract type.
• Add option to janet_fn attribute macro to include arity checks
• Add Janet::unwrap_or, Janet::unwrap_or_else and Janet::unwrap_or_default
• Implement Display for TaggedJanet and defer the Janet display implementation to that
• Improve error report of attribute macros
• Refactor the janet_fn attribute macro parameter parsing
• Refactor the JanetEnvironment and JanetClient API
• janet_fn now emits code with the function documentation and source map information as constants to be used by another macro declare_janet_mod
• Fix compilation when no_std and with unicode feature enabled

• Add JanetTable::clear in Janet version below 1.10.1

• Fix compiler complaining about alloc crate when std feature is active while using a macro

• BREAKING: Rename as_ptr_mut to as_mut_ptr
• BREAKING: Rename as_raw_mut to as_mut_raw
• BREAKING: JanetAbstract::new now takes a value
• BREAKING: Make the janetrs::types module private and export everything inside it in the upper module
• BREAKING: Modify From<&str> for Janet to return a Janet keyword if &str starts with :
• BREAKING: Modify CallError::stacktrace function.
• Add ability to change some Janet behavior using the amalgation feature using environment variables
• Add DeepEq trait
• Add dedup, dedup_by and dedup_by_key for JanetArray
• Add get_unchecked and get_unchecked_mut for JanetArray
• Add get_unchecked for JanetTuple
• Add get_method and has_method to Janet
• Add prototype, set_prototype and with_prototype methods for JanetTable
• Add get_key_value_proto{_mut} and get_proto{_mut} methods for JanetTable
• Add JanetGc and JanetGcLockGuard types to access some Janet GC operations
• Add JanetGcRootGuard and the functions JanetGc::root and JanetGc::unroot to root a Janet object to the GC
• Add functions to get reference to a JanetAbstract data safely
• Add JanetAbstract::is
• Add Janet::int64
• Add Janet::uint64
• Create janetrs_version crate to use as common code used by janet_version macro and janetrs::util module
• Implement DeepEq for most types
• Implement Debug and Display for JanetSymbol
• Implement Debug and Display for JanetKeyword
• Implement IsJanetAbstract for i64 and u64
• Implement PartialEq, Eq, PartialOrd and Ord for JanetAbstract
• Implement PartialEq, Eq, PartialOrd and Ord for JanetFunction
• Implement PartialOrd and Ord for JanetFiber
• Implement From and TryFrom between i64 and Janet
• Implement From and TryFrom between u64 and Janet
• Include "@" before the debug representation of Janet mutable types
• Refactor Debug implementation of Janet type
• Refactor Display implementation of Janet type
• Refactor some implementations of From and TryFrom related to Janet type
• Reduce code duplication in JanetAbstract functions

• BREAKING: Change definition of IsJanetAbstract trait
• Expose jcatch! macro only if Janet version supports the underlying mechanism
• Fix some clippy lints
• Fix compilation on no_std environment.
• Make some functions const if using a recent enough Rust version

• BREAKING: Add Janet::unwrap that return TaggedJanet
• BREAKING: Rename Janet::unwrap to Janet::try_unwrap
• Add JanetEnvironment type
• Add janet_version/cjvg attribute macros for conditional compilation of Janet versions
• Add split iterator for JanetBuffer and JanetString
• Add jcatch declarative macro
• Refactor JanetClient in terms of JanetEnvironment
• Implement TaggetJanet type
• Implement JanetAbstract type
• Implement JanetPointer type
• Implement JanetTryState for Janet "exception" recovery
• Implement PartialEq, Eq, PartialOrd and Ord for several Janet types
• janet_fn now can accept a parameter check_mut_ref that checks if the function received more than one *mut pointer as parameter (not the default because Janet types are like interior mutability types)
• More methods added for several types and improvements to the docs

• Fix change in behavior in JanetBuffer since Janet 1.13.0 and also enforce that on earlier versions
• Fix UB in JanetTryState safe API
• Fix Default implementation for JanetEnvironment
• Fix JanetTuple implementation of PartialEq to match the Janet implementation

• Implement Display for JanetType

• Fix From<char> for JanetString not considering that char can be represented with more than 1 byte in UTF-8

• Basic Janet types manipulation
• A way to run the Janet runtime
• Macros to create Janet collections
• Macro to cause Janet Panics
• Macro to catch Rust Panic and transform to Janet Panic