Changelog:
- Moved crew string colorization to lib/color.rb
- Moved crew constants to lib/const.rb
- test_all can now be run from anywhere
- Tests are all relative now (no need to have a crew installation)

test_all runs all tests automatically.
no_cycles checks local packages instead of packages in /usr/local/lib
Added REAME for explanation.
Modifying crew file to have a "init only" functionality

readline upgraded to 7.0 because now php5 and php7 need it

Add pre-compiled binaries

Change crew to accept multiple arguments by using docopt

Update unrar from 5.4.5 to 5.5.7

Change perl.rb to install cpanm through CREW_DEST_DIR

Add perl_xml_sax_parserfactory package

Add log4cplus package

Add docbook2x package

Add units package

Add autossh package

Prior to this change when `@pkg.is_fake?` evaluated to true the code would execute `post_install` with a `nil` `target_dir` variable, causing a nil error on `Dir.chdir(nil)`

Update sshfs from 2.8 to 2.10

Change node.rb to modify the way of configuration

Modify crew to add postinstall function

Change libmp3lame to make it work on i686.

Change expect to increment version number.

Change valgrind.rb to make it work on arm