Change pages from php to jsp,
implements login,
add JSON encoding class,
add MD5 hash function
Added registration logic
Added new_task and edit_task, still has dependency to task method
Added change profile data
Added change user password
Add logout logic and inactive session for max 30 days
Merge branch 'master' of https://github.com/dragoon20/IF3038-2013

Conflicts:
	src_java/models/Task.java