update version to v0.7.4

update to v0.7.3

update version to 0.7.2

addng .gitignore

fix tjanczuk#8: add vc   2012 redist, update to v0.6.1

update version to v0.6.0

update to v0.4.0

update to v0.3.0

update to 0.2.0

readme updates, v0.1.0