resolve IE page list bug
change i18n word '맴버' to '멤버'
make projcect creation agreement checkbox bg-image more clearly
change project naming rule
- now -(hypen) can be used in project name
Merge remote-tracking branch 'origin/master'
remove cache annotation
change validation popover message to tooltip in sign-up form
 to avoid some popover bug and popover message overlapping
provide sorted my projectlist and some css modifications, fix defects

Now, members can see their project list by sorted
- by creation date
- by name
Main Layout has border
and...
sorry, I can't remember any other things any more... HAHA
Merge branch 'master' of https://github.com/nforge/nforge4

Conflicts:
	app/controllers/Application.java
	app/controllers/ProjectApp.java
	app/models/Project.java