updated menu path for teachers and students
updated minification code for css and js
updated Base controller for loading correct minified css and js
updated spellings in left menus
added student service for fetching data from server
updated student/list.js to use studentservice
added teacherservice and updated teacher/list.js to user teacherservice code
updated student/list.blade.php with correct controller function
Merge branch 'naveen' into hitanshu

Conflicts:
	trunk/application/controllers/base.php
added js/controllers/user folder to minify script