PT-1276 - Added improved print handling for logging.

	modified:   petitionssignatureform.module
PT-1276 - Updated logging messages.

  Replaced calls to print_r with formatforlog for meaningful logging in
  drupal-watchdog.log files.

	modified:   petitionssignatureform.info
	modified:   petitionssignatureform.module
Updated UPDATE.txt.

With extra changes from rebasing commits from 7.x-2.x.
PT-1458 - Created wrapper for petitionslog_event and placed call to wrapper as needed
PT-1458 - Updated event log names to be more granular
PT-1458 - Fixed up some event placement and documentation.
Fixed truncated syslog messages due to line breaks in watchdog.
PT-1491 - Eliminated dependency on formatforlog module.
Merge branch '_7.x-1.x' into 7.x-1.x

Conflicts:
	petitionssignatureform.module

Resolves conflicts. Merges in changes from petitions.whitehouse.gov site repo.