Merge pull request #44 from jurre/master

Set 'all packages' tab as selected when first starting alcatraz
Update CHANGELOG.md
Add package factory tests
DRY
moved autoreleasepool a bit in factory. tests are running
extracted Lion check in pch
Fix return value of package factory, fix tests
Test parsing website from package url
updated Kiwi to 2.1 and used string matchers
Update CONTRIBUTING.md
tested parsing revisions
added some more package tests
tested abstract installing stuff
renamed local packages. extracted completion blocks
Merge branch 'package-tests'
Made ibactions names more consistent
made packages reload each time the window is opened.
fixed specs
shoot for 1 expectation per spec
Add version label to ATZ window