at the time of creating client do not allow activate with future date
display parent offices staff for creating a center
remove unused warnings, replace toDateMidnight with toDateTimeAtStartOfDay method as recommended by joda time lib.
Client and Group timeline Implementation
handled null pointer exceptoin when there is no charges
Merge pull request #667 from pramodn02/MIFOSX-730

handled null pointer exceptoin when there is no charges
Merge pull request #666 from Musoni/MIFOSX-765

MIFOSX-765 - Client and Group timeline Implementation
MIFOSX-765: ensure activated by is captured at creation if also activated at same time.
Merge pull request #664 from ashok-conflux/MIFOSX-784

at the time of creating client do not allow activate with future date
Merge pull request #665 from ashok-conflux/MIFOSX-783

display parent offices staff for creating a center