Merge pull request #51 from jonathanchu/master

Minor changes to documentation.
Add Jonathan Chu to AUTHORS file
remove comments - not relevant to diffing
provide way to specify number of lines of context
make sure _compare database gets cleaned up if errors occur
selectively ignore nothing, comments, 'ADD CONTSTRAINT' (which has generated random name)
Fix syncdb, make it work on empty databases again

The --skip-migrations flag will make it skip the nashvegas migrations,
which will fail on new, empty databases. This will also make 'comparedb'
work again if there are migrations in general.
whitespace fixes
Add basic test for duplicates in get_pending_migrations
Merge pull request #54 from dcramer/test-pending-migrations

Add basic test for duplicates in get_pending_migrations
minor spelling fixes

singe->single, light->look
Merge pull request #55 from asparagui/minor_sp_docs

minor spelling fixes
0.8b1
Merge pull request #52 from iivvoo/master

comparedb improvements (ignoring, more context, error handling)
Add note about creating initial migration

Closes #56
Fix formatting
Remove semi-colon