Test commit
Github Issue #7

Removed unsupported offset parameter and added Pagination support for:
ContactService
ContactListService
EmailCampaignService
Added specific methods in public API too.
Github Issue #7

Added pagination support for ContactTracking Service.
Github Issue #7

Refactored pagination method name for ContactTracking Service to prevent ambiguity issues when used in ConstantContact class.
Github Issue #7

Removed unused contactId parameter from pagination methods in ContactTrackingService.
Added specific contactTrackingService methods to the public API (ConstantContact class).
Github Issue #7

Removed unused listId parameter from pagination methods in ContactListService.
Added specific ContactListService methods to the public API (ConstantContact class).
Github Issue #7

Added error description for null pagination parameter.
Github Issue #7

Reverted old pagination implementation.
Came up with better solution; added generic PaginationHelperService.
Cleaned up ContactList and ContactService.
Integrated in ConstantContact class new implementation of PaginationHelperService for above services.
Minor parameter name change in PaginationHelperService
Cleaned up ContactTrackingService.
Integrated in ConstantContact class the new implementation of PaginationHelperService for ContactTrackingService.
Cleaned up EmailCampaignService.
Integrated in ConstantContact class the new implementation of PaginationHelperService for EmailCampaignTrackingService.
Modified BASE_HOST_URL in order to prevent double slashes when appending the pagination URL.
Modified BASE_URL accordingly.
Renamed CTCTDemo1 into AddOrUpdateContacts
modified app name in strings.xml
Renamed CTCTDemo2 into CreateAndScheduleCampaign.
Constant Contact API - updated specification for javadoc.
Deleted old documentation.
Updated javadoc
deleted unnecessary project files from AddOrUpdateContact demo project