Typo in doc for RKSearchPredicate

suclass => subclass
Merge pull request #1777 from rex64/patch-1

Typo in doc for RKSearchPredicate
Bump Ruby version to 2.0.0-p353
Fix outdated documentation of cancellation behaviors. closes #1797
Using proper error field for warning
Merge pull request #1799 from RyzacInc/FixUsingProperErrorField

Using proper error field for warning
Add Git submodule step to Testing README.md

fixes #1800
Added missing init call.
Merge pull request #1810 from matej/initFix

Added missing init call
Fix typo in documentation for RKManagedObjectRequestOperation related to Fetch Request Blocks and Deleting Orphaned Objects
Merge pull request #1814 from obuseme/development

Fix typo in documentation for RKManagedObjectRequestOperation related to...