Lower-case project name

This is more consistent with the other kdevelop-related projects
includeswidget: Use KMessageWidget
Merge remote-tracking branch 'origin/4.7'

Conflicts:
	languages/plugins/custom-definesandincludes/kcm_widget/includeswidget.ui
PVS V555 fix
cpp: Fix conversion warnings
qthelp: Fix warnings
Merge remote-tracking branch 'origin/4.7'

Conflicts:
	languages/cpp/parser/rpp/pp-stream.cpp