Debian has automated systems that look for common typos in binaries

This reverts commit a4256fcb, reversing
changes made to aa2dd717.

Fixed whitespace, removed unused methods, corrected documentation.

Whenever we hangup or our peer hangs up a call, an entry is added to the history
(in memory). When the daemon exits, it will save the history
automatically.

[ #7876 ] Remove unused class attribute, rename all attribute use use m_ for private member, m_p for private pointer, m_s for private static and m_sp for private static pointer

[ #7876 ] Update copyright from 2010 to 2012 (next version wont be released until then, so why not doing it now)

This will replace the existing getHistory dbus method.

[#7023] Add the ability to load an abstract contact backend in the library to resolve more data, polish code

Fix memory leaks in client
Change a bit dbus protocol: int -> int instead of int -> string -> string -> int
Remove unused and empty yamlengine

[#7021] Refactor KDE client dbus handling, add a missing call in daemon and port the DataEngine to the new API