Added some sanity checks in samples to avoid failing cases.
 modified titles of all samples to reflect correctly what the sample is
doing.
Fixing a bug in Activity Service Get Member. typo in a parameter
memberid.
removed the Old Activities REST sample. It is not functional anymore.
Merge branch 'master' into SamplesCleanup
Review Comments.
Merge branch 'master' into SamplesCleanup
Added doc for the setPosition method.
Added documentation for the remaining getters and setters .
Merge branch 'master' into SamplesCleanup
Merge branch 'master' into SamplesCleanup
Merge pull request #703 from VimalDhupar/ActivitiesSamplesCleanup

Activities samples cleanup