Fixing path name issue in template installs
Merge pull request #277 from khawkins/fix_build_script

Fixing path name issue in template installs
MessageUI & QuartzCore dependency indicated on existing projects

Existing projects with SDK needs these two frameworks as well:
1.MessageUI.framework,  2.QuartzCore.framework

Updated the description for the same.
Merge pull request #287 from abhinavguptas/patch-1

MessageUI & QuartzCore dependency indicated on existing projects
Making xcodebuild clean target mandatory to all builds.

This will fix the issue where the precompiled headers are incompatible with newer versions of clang delivered in Xcode updates.
Updating readme with definitive bootstrap instructions
Merge pull request #310 from forcedotcom/clean_every_build

Making xcodebuild clean target mandatory to all builds
Merge remote-tracking branch 'origin/master' into unstable20

Conflicts:
	hybrid/sfdc_build/build.xml
	native/sfdc_build/build.xml
	shared/build.xml
Merge pull request #311 from khawkins/unstable20

Merging master into unstable20