Russian constants are moved to twig & RusLang modules.
Functions were renamed to Semesters::load($id) & Semesters::loadAll().

# Conflicts:
#	~dev_rating/application/classes/Controller/Teacher/Discipline/Edit.php
#	~dev_rating/application/classes/Model/Account.php

Moved some functions from Account to Model_Account & Model_Teacher.

In windows (not sure about linux) "localhost" will be parsed in HOSTS file, so it takes too much time.