added operation for manipulating UIDatePickers
Merge pull request #24 from jmoody/0.9.x-datepicker-change-date-operation

added operation for manipulating UIDatePickers
adds git revision and branch information to output of server_output
intermediate commit
moved versioning scripts out of the xcode project to expose them to
the calabash-cucumber Rakefile build server task
added missing import statement to LPOperation.m - was missing after rebase?