Add usage info to readme
Added a test for all the packages required for cyg-apt are barred
Added the package `xz` to barred package list
Merge pull request #15 from alquerci/add/xz_is_barred

Fixed the barred package list
Fix coding style
Merge pull request #16 from nylen/fix-coding-style

Fix coding style
Added some tests for `cygapt.utils.rmtree` function

Clean up following specification paths iteratively or not:
    - No exists
    - No read permission
    - Symlink to a file
    - Symlink to a directory
    - Broken symlink
Fixed `cygapt.utils.rmtree`
Merge pull request #19 from alquerci/fix/utils/rmtree

Improved test suite for rmtree
Improved the test suite run 10x faster
Merge pull request #17 from alquerci/ipv/test_suite

Make the test suite run 10x faster
Added tests to keep permissions of the target link on rmtree
Fixed `cygapt.utils.rmtree` for Windows

On Window the write permission is also needed.
Added missing assertion for install and remove package
Merge pull request #30 from alquerci/add/test/install_remove_asserts

Added missing assertion for install and remove package
Fixed test for testing [x86|x86_64]/setup.ini selection
Fixed the [x86|x86_64]/setup.ini selection
Merge pull request #29 from alquerci/add/test/arch

Fixed test for architecture selection
Merge pull request #28 from alquerci/fix/rmtree_on_windows

Fixed `cygapt.utils.rmtree` for Windows
Added a test for the `postinstall` command