Fixes #1 by xpanded testing matrix and adding arm7 support for common…

…_unix.go

Fixed a bug in the replaceFile and replaceDirectory action being filt…

…ered out

Removed windows from support because why not

Added [More|Less]PermissiveThan os.FileMode to the [file|directory].O…

…ptions struct and added additional functions to common.

Added additional options and renamed package