main python file

user login and key_name issue settled.
security not up.
not jinja-ed.
no design.
Log-in page added

only works if user logged in.
'switch' to display "guest view"
updated main.py
updated main.py and login.html (JINJA STUFF)
browse.html done
sort date created in ascending order (Oldest first)
Disable posting of item if not logged-in
allow user to login in browse page if not logged in earlier
postitem page done. HTML code typed into textbox wouldnt affect HTML.
About us
About us
Merge pull request #2 from dhskohjingyu/master

latest 27/1/13 pull