Work on razor-lightdm-greeter
Fixed #538 razor-panel: Restore (a minimized window) is not working while using Fluxb
Minor fixes on razor-lightdm-greeter
ignored duplicate entries in the HistoryProvider

Currently razorqt-runner can produce duplicates in the history:
if you run the same command from the CustomCommandProvider twice, it
will be inserted into the HistoryProvider-list and the file twice.

This patch checks changes HistoryProvider::AddCommand, so that it will
search if this command already exists and it will move that entry to
the top of the list (instead of creating a new item).
Merge branch 'master' of git://github.com/Boris-de/razor-qt (#556)
Minor fixups
Removed support for liblightdm-qt-1 in razor-lightdm-greeter
merge
Restored some code in razor-lightdm-greeter/loginform.cpp that was erased in a merge
Formatting in razor-lightdm-greeter/loginform.cpp
Set correct event_mask in the RazorTaskButton
Fix building with C++11
Greeter: Fix session list
Kb indicator plugin simplified