Added guaud clauses in all public methods.

Changed access modifiers for CreateLinkObjectFromTransition and GetTransitionFromLinkObject from public to protected.
Updated README.md
UPdated version number in AssemblyInfo.cs
Merge pull request #22 from mdsol/feature/guard-clauses

[MCC-114478] Added guard clauses in all public methods.
Merge branch 'develop'