Part 1 : Merged changes in SLTSaltr class.
Merge branch 'master' of https://github.com/plexonic/saltr-ios-sdk

Conflicts:
	Saltr/SLTSaltr.h
	Saltr/SLTSaltr.m
Renamed Constants header file to Config.

Part2 : Merged changes in SLTSaltr class.