added tests for is_executable #21
meta updated
meta updates
Merge pull request #28 from thornag/1.1.x-is_executable

added tests for is_executable #21
Merge branch '1.1.x' of github.com:thornag/php-vfs into 1.1.x
added phpunit as dev dependency, removed coveralls
added symlink support (close #20)
fixed chmod when chmoding link
Merge pull request #26 from thornag/1.1.x-symlinks

1.1.x symlinks (fixes #20)
fixes #22, changed behaviour of rename
Merge pull request #29 from thornag/fix/dir-rename

Fixed behaviour of rename function closes #22
Makefile sugar
Add flock support
few touchups for PSR
Merge branch '1.1.x'

Conflicts:
	src/VirtualFileSystem/Container.php