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
start implementing OiDataExchange interface #97
update OiConfigState #94
Merge branch 'plugins' of https://github.com/OpenIndy/OpenIndy into plugins
add special export dialog #97
GUI implementation for im- and export of nominals (plugin) #97
update OiExchange interfaces + add OiExchangeEmitter #97
add OiExchange interface to default plugin
load nominals into OpenIndy #97
Move im- and export to thread + show loading dialog on im- or export #97
bugfix thread (loading dialog) + addFeatures method to add multiple features at once #97
Change default column config to name x y z #97
Merge branch 'plugins' into task_benedikt
measurement config start bugfixing #94
bugfixes measurement config #94
change in OiConfigState
bugfix set measurement config to be a saved config after creation #94
bugfix measurement config: load defaults from database when reopen OpenIndy #94