Applied the functin naming convention

in this part I capitalized all the fisrt letters of every method
Merge branch 'master' of https://github.com/Serame/iUpdate into Serame-master

Conflicts:
	DocumentInterface.h
	IUpdate.pro.user
	docinterface.cpp
	mainwindow.cpp
Merge branch 'Serame-master'

Conflicts:
	docinterface.cpp
	docinterface.h
	mainwindow.cpp