Added feature to add the users in Cc and To list of mail header to
issue monitoring list
Updated changelog
Moved bug_monitor() call to the end of bug creation procedure
Add condition to check if user_id cannot be found
Added a comment regarding get_user and script_login
Issue monitors are not required to login to system when they are
added by the reporter. Added an extra parameter to get_user to
disable script_login when adding issue monitors.
Implemented changes suggested by @SL-Gundam
Added condition to ignore reporter's email address from the list
Removed the TODO comment
Fixed the bug in which email addresses not enclosed in angle
brackets are not considered - changed the regular expression
Merge branch 'master' into 0016835

Conflicts:
	core/mail_api.php
Fixed the indentation in get_user() function
Merge pull request #11 from manilal/0016835

Feature to add users to issue monitoring list #16835