Add new action for getting license info (#129)

This will be checked subsequently in minio for a new admin api
'license-info' that returns information about the license. That api will
finally be used by clients to fetch and display the license details.

upgrade all deps (#128)

Fix deep recursion on star end (#127)

* Fix deep recursion on star end

Also avoid very expensive string -> slice conversion

```
λ benchcmp before.txt after.txt
benchmark                                      old ns/op     new ns/op     delta
BenchmarkMatchSimple/0-prefix-reference-32     0.23          0.23          -0.55%
BenchmarkMatchSimple/bench-0-32                3771          3.83          -99.90%
BenchmarkMatchSimple/bench-1-32                0.93          0.72          -22.71%
BenchmarkMatchSimple/bench-2-32                0.70          0.59          -15.65%
BenchmarkMatchSimple/bench-3-32                1.63          1.41          -13.58%
BenchmarkMatchSimple/bench-4-32                201           6.24          -96.89%
BenchmarkMatchSimple/bench-5-32                77.6          18.2          -76.49%
BenchmarkMatchSimple/bench-6-32                57.6          17.9          -68.93%
BenchmarkMatchSimple/bench-7-32                115           37.1          -67.81%
BenchmarkMatchSimple/bench-8-32                58.6          17.0          -70.94%
BenchmarkMatchSimple/bench-9-32                163           17.6          -89.19%
BenchmarkMatchSimple/bench-10-32               70.8          14.9          -78.92%
BenchmarkMatchSimple/bench-11-32               154           87.8          -43.19%
BenchmarkMatchSimple/bench-12-32               366           197           -46.21%
BenchmarkMatchSimple/bench-13-32               361           199           -44.81%
BenchmarkMatchSimple/bench-14-32               498           294           -40.99%
BenchmarkMatchSimple/bench-15-32               394           251           -36.24%
BenchmarkMatchSimple/bench-16-32               260           86.4          -66.77%
BenchmarkMatchSimple/bench-17-32               96.8          15.4          -84.08%
BenchmarkMatchSimple/bench-18-32               57.2          16.2          -71.70%
BenchmarkMatchSimple/bench-19-32               82.8          19.2          -76.78%
BenchmarkMatchSimple/bench-20-32               59.8          16.6          -72.24%
BenchmarkMatchSimple/bench-21-32               69.3          6.95          -89.96%
BenchmarkMatchSimple/bench-22-32               15.4          3.82          -75.21%
```

Recursion could be fully avoided, but this should be good for now.

* Bonus vet fixes

ldap: replace `RootCAs` and `InsecureSkipVerify` with `tls.Config` (#125

)

This commit replaces the custom root CA pool and the skip-verify
flag with a dedicated TLS client config. Now, the client TLS config
can be customized.

Signed-off-by: Andreas Auernhammer <[email protected]>

Supporting code for bucket-level CORS configuration settings (#123)

Add msgp support for xtime.Duration (#122)

Allow a KMS Action to specify keys in the Resources of a policy (#121)

feat: support xtime duration (#120)

rename the file to indicate its not a contrib

fix: the relevant tests and license header