Save the notices as local xml files

Extract the notices by using extract module. Then save the notices in gen folder
returning the count of new notices saved. Ignore gen folder.

Signed-off-by: Venkatesh Shukla <venkatesh.shukla.eee11@iitbhu.ac.in>
Add timestamp to the notice, and check html

If html is sent, use that or else check for presence of 'notice_board.html'.

Signed-off-by: Venkatesh Shukla <venkatesh.shukla.eee11@iitbhu.ac.in>