[DEV]save config in tmp.xml; TODO:change item_tmp.xml to item.xml
[VERSION 0.1]
can do:
1. add/remove StudyObject
2. load xml file to display dataitems

to do:
1. load parameter
2. detect duplicate StudyObject
3. remove temp file after comliting
Merge branch 'master' of github.com:nearc/renkou

Conflicts:
	ui-wizard/newprojection/EnumClass.h
no message
add method&signal "itemChanged"
done:
1. modify some details.
todo:
1. exclusive choice
2. param