Created template to change password
Added action to change user password for new one
Added information alert that password was changed
Added handlebars helpers to display alerts information if user entered proper password or not
Added flash messages, improved change_password template by adding alert information for user
Added res.redirect to 'my goal' side, fixed small changes in 'deadlines_list' template
Merge branch 'master' into change_pass

Conflicts:
	app/controllers/deadline.js
	app/controllers/user.js
	app/handlebars/helpers.js
	app/views/change_password.hbs
	app/views/deadlines_list.hbs
	app/views/login.hbs
	app/views/remind_password.hbs
	static/style/css.css
Improved redirect link to 'my_goals' side
Added necessary closing tag in 'deadline_list',