Exclude some files we only need in the repository from the ZIP files generated by GitHub.
Remove some workarounds for older PHP 5.3 versions.
Merge pull request #104 from realityking/php53

Remove some workarounds for older PHP 5.3 versions.
Merge pull request #103 from realityking/export

Exclude some files we only need in the repository from the ZIP files gen...
Remove the IS_WIN constant.
Merge pull request #107 from realityking/win

Remove the IS_WIN constant.