Fixes wiki diff rendering.
Extracts a diff helper from the WikiDiff class.
Fixes syntax for time logging in commit messages (#7630, #7718).
Adds support for SCM/LDAP passwords encryption in the database (#7411).
Adds a method to temporarily override configuration settings.
Bulgarian translation update by Ivan Cenov.
Removes obsolete code from Opera pseudo right click (#7700).
Do not responde with javascript on regular requests.
scm: git: add flag of disable showing last commit in repository tree (#7047).
scm: filesystem: fix mistake of respository select box on r4943 (#2274).
