changes

- event_list and event_detail will show organizer's user_nickname IF it
is set, else, it will defaul to username
bug fix

- event update and create allow creator to manually change is_hot
status, this is fixed to disallow such behaviour
changes & bug fix

- fix the white border on the main page right
- footer shift from main.html to base.html so that footer will appear on
every page
- css tidied up to remove unuse classes and inconsistency
Merge branch 'master' of https://github.com/jejekule/app_project

Conflicts:
	basal/templates/basal/main.html
	static/css/base.css