dynamic mapping equivalence just checks pointer identity
Merge pull request #1940 from peebsjs/make-dynamic-mapping-equality-pointer-identity

Dynamic mapping equivalence should just check pointer identity
[README] Switch to shields.io for README badges
Merge pull request #1941 from RestKit/shields-badges

[README] Switch to shields.io for README badges
[README] Link up badges
[SOCKit] Switch Vendored SOCKit to submodule, v1.1

Closes https://github.com/RestKit/RestKit/issues/1939
Fix -[RKPropertyMapping isEqualToMapping:] when sourceKeyPath is nil

Closes https://github.com/RestKit/RestKit/issues/1936
Fix -[RKObjectMapping mappingForSourceKeyPath:] when sourceKeyPath is nil

Closes https://github.com/RestKit/RestKit/issues/1937
Update CI rake task
Switch test automation to xctasks
Update to RakeUp 1.2.0
Drop debugger from server
Switch to Expecta HEAD to fix issue with Objective-C++ files
Drop Brewfile
[Travis] Remove `brew bundle` from travis
Fix typo in lint task execution
Make RKCoreData.h public for frameworks
Merge remote-tracking branch 'upstream/development' into development