clear up the code
app structure update
sliding menu added, icon pre-setted
WeekAgendaView init
week agenda view init
classInfo selecte, edit work init
database structure updated
class info edit activity finish 80%
Merge branch 'master' into dev

Conflicts:
	OPAM_Client/res/layout/cours_detail_2.xml
	OPAM_Client/res/layout/main.xml
	OPAM_Client/res/layout/view_page.xml
	OPAM_Client/res/values/strings.xml
account del fonction added
clearn Up (png and layout)
Merge branch 'master' of github.com:xdzhou/OPAM-INT

Merge Master
Merge branch 'dev'

Merge dev