Merge pull request #726 from bugzmanov/master

[RJA-xxx][fix] 6k header is not enough
[RJA-1530][fix]: don't treat comma as list separator in string values of system/plugins settings
Merge pull request #727 from ddurnev/master

[RJA-1530][fix]: don't treat comma as list separator in string values
[RJA-XXX][feature] Implemented new method for getting bunch of users to optimize storage usage;
[RJA-XXX] Exclude all caching stuff from ldap
[RJA-XXX] Prefix search for users and groups; Ldap service logging;
[RJA-XXX][feature] Introduced timeout and size limit parameters for LDAP module
[RJA-XXX][fix] Fixed autocomplete minimal input size
[RJA-XXX][feature] Removed fallback for invalid users/groups services
Merge pull request #723 from azhuchkov/ldap-tests

Ldap updates
[RJA-1561][fix] moving static resources to "genesis" subfolder