removed xcconfig file for RXPromise libraries
removed function attribute in public header; fixed a Unit Test
Updated CHANGES document, fixed library build settings
fixed a number of Unit Tests
working on weak promise
fixed code to silence analyzer warnings
fixed  and  methods
merged with master, fixed Unit Tests
Updated CHANGES and README document
updating RXPromise-iOS-Test.xcscheme
Merge branch 'sample'
updating RXPromise-iOS-Test.xcscheme
Renamed 'CHANGES.md' to 'CHANGELOG.md' document to match rake file template