add scripts to Xcode project

no need to build them, but nice to have
a reference when you need it
fix cmake not found in /usr/local/bin

explicitly add /usr/local/bin to PATH when
executing cmake for libgit2.
add quotes to variable assignment

+ move it to top of file
++specta
Set the gergorian calendar's timezone to GMT.
Tabs.
Merge pull request #151 from libgit2/fix-timezone-spec

Fix timezone spec and update specta
Add -[GTRepository preparedMessage]
++English
Merge pull request #152 from libgit2/prepared-message

Add -[GTRepository preparedMessage]
Merge pull request #150 from diederich/features/findBrewCMake

Search for cmake in /usr/local/bin
actually do the parameter assert that we claim is necessary in the docs
moved the user signature to GTRepository
Merge pull request #153 from libgit2/move-user

Better User signature
nowhere needs a domain too
Merge pull request #154 from libgit2/add-domain

Nowhere needs a domain too
Support diffing against /dev/null in GTDiff
++ libgit2 for diff fixes
Rename tracking to upstream.
Bumped libgit2