added functions that create sensor specific dynamic control actions. not completely implemented yet. #92
bugfix watchwindow crash, when closing mainwindow #93
bugfix reading model when no sensor is set #86
total station sets sight of reading after measurement  #96
bugfix move and watchwindow leica tachymeter. #63.
leica total station now switches between tracking mode for watchwindow and normal mode for measurements.
atr and other functions follow in the next days.
switch between RL and IR possible. watchwindow works.
ATR and lock do not work yet.
deleted useless button from mainwindow console.

Leica total station now can track the prism and can ATR at measurement.
Also added laser pointer as new feature.

#63
now using quick measurement for watchwindow
measuring in watchwindow stops the stream and afterwards reactivates it.
removed unused functions
added comments
#63
Merge branch 'plugins' into gui_enhancement
updated database and sql file
add new plugin interface OiTool #97 #99
Merge branch 'gui_enhancement' into plugins

Conflicts:
	db/oisystemdb.sqlite
start implementation of new plugininterface for creating custom gui tools