xcodeproj 0.20.0

on Ruby Gems

Breaking

• Support for Ruby < 2.0.0 has been dropped. Xcodeproj now depends on
  Ruby 2.0.0 or greater.
  Kyle Fuller

Enhancements

• Project: Recognize merge conflicts and raise a helpful error.
  Marius Rackwitz
  Xcodeproj#192
• PBXContainerItemProxy: Allow access to the proxied object.
  Marius Rackwitz
  Xcodeproj#178

Minor Enhancements

• PBXCopyFilesBuildPhase: Add a convenience method symbol_dst_subfolder_spec
  to set the destination subfolder specification by a symbol.
  Marius Rackwitz
  Xcodeproj#187
• PBXNativeTarget: Return newly created build files by add_file_references
  and yield each one to allow direct modification of its settigs.
  Marius Rackwitz
  Xcodeproj#187

Bug Fixes

• PBXNativeTarget: Fixed the creation of target dependencies, which refer
  to subprojects.
  Marius Rackwitz
  Xcodeproj#178
• PBXReferenceProxy: Added the missing attribute name, which could appear when
  external frameworks are referenced.
  Marius Rackwitz
  Xcodeproj#189