Might help with hanging services

This happens if called from BSHandoff (i.e. if there already is a socket).

Only needed for "transitive interconnect" setups, which are currently
not really supported anyway. Still...

This happened when adding packman OBS instance and trying to add
a repository in the simple webui view.

Repository targets won't become visible anyway.

1. buildlog_maxsize
2. buildlog_maxidle
3. xenstore_maxsize
4. gettimeout

Commit 8ad64791
moved ldap related methods out of User class
into a new UserLdapStrategy class and Configuration class
but didn't update the caller in other places

Should help with stuck 'service in progress' errors.

make direct call to Rails.logger.debug instead of logger.debug

+ Clean up a couple of typos and trailing spaces.

Optimization done in runtime at revfile rewrite process and do
not fail if a project was deleted during (long) run

memcached is not optional anymore it is mandatory for the webUI to work.

adding also some test cases.

Thanks to Rick Liu for reporting this.

"deny" for registration was not possible due to wrong DB setup (issue#669)

This should fix issues with pacman obs instance.