update changelog
Work with .ZIP (in UPPERCASE)

Fixes #54.
Update CHANGELOG
fix hard-coded msvc path prefix

replaced the 'C:\Program Files (x86)' prefix with the value provided by the
'ProgramFiles(x86)' or 'ProgramFiles' environment variables.
Switch to patchelf (just like #11)
Merge pull request #57 from dan-blanchard/patchelf

Switch to from chrpath to patchelf on Linux (just like #11)
update changelog
Merge pull request #55 from rvianello/msvc_path

fix hard-coded msvc path prefix
Update CHANGELOG
Merge branch 'master' of github.com:conda/conda-build

Conflicts:
	CHANGELOG.txt