rename table to plural form
add subject and date to activities table

add some more activity type too
use activity_id as PK for all types of activities
get activity instead of each individual activity type
fix comment link to post
a little bit of cleanup
a little bit of clean up
update mee
new route name
show post to profile too
Merge branch 'master' into db-rewrite
NoJS: fix show and hide comments
non-red for empty notification background
coding style fix
update mee
non-red for empty notification background
Merge branch 'db-rewrite'
add like and unlike button

unlike currently not working
fix PHP warning