Increased status chart detail.
Email is correctly displayed in the posts.
Improved css.
Small optimizations in scraper.
Triggers are passed from the parent class, not initialized in each ThreadScraper.

Cleaned up the code a bit.
Merge branch 'dev-opti' into dev
View returning ajax data for stats page moved to api.py.
Url renamed to api_stats.
View returning data for gallery moved to api.py.
Url renamed to api_gallery.
Removed debug related raise in try-except block.
Adding, removing tags and saving threads restricted to staff only.
Earlier those actions could be performed by all logged in users. That posed problems if there were other applications using the same database as this archive.
Specific permisions might be added later.
All api/ajax related views moved to views/api.py.