apply HIVE CSS, delete milestone manage page

apply HIVE CSS including trivial fix.
delete milestone manage page that combined with milestone list page
code history, diff view UI fixed (HIVE-146, HIVE-145)
change view filename, adjust project logo size

change view filename(HIVE-211), adjust project logo size(HIVE-213)
remove unused files, fix filter markup on milestone list
change overview history UI

Conflicts:
	app/models/History.java
	app/views/project/overview.scala.html
	conf/messages.ko
	public/javascripts/common/hive.ui.Typeahead.js
	public/javascripts/service/hive.project.Home.js