Author: Rajesh Taneja
MDL-29844 Administration: Added new config for users to login for viewing profile image
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4ed11995247b47033d4cd58eb75bc7101a431ef5
http://github.com/moodle/moodle/commit/4ed11995247b47033d4cd58eb75bc7101a431ef5
+ 1.9 en [forceloginforprofileimage,admin]
+ 1.9 en [forceloginforprofileimage_help,admin]