add new_projection wizard
add new_projection wizard
add new_projection wizard
reform the structure of the DataWidgetItem
optimize the structure of the xml file
using DOM to parse the xml file
add dummy entity of virtual destructor function.
implement of some tree view features
using QTreeWidget to display the xml data/para file
TODO:
refine check state;
design StudyObject class;
[data|para]_[year]_[area]_[tmp].xml
add EnumClaa to contain the province list;
[DEV]add *.pro to the git
add EnumClass to manage the province list
Merge branch 'master' of git@github.com:nearc/renkou.git into remote-master

Conflicts:
	ui-wizard/newprojection/newprojection.pro
[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