Removed old spyware code and table.
Optionally store client time, nanotime and ip with submission.
Bump API version.
Update ext/tmc-spyware-server.
user/update: send user_field changes to spyware
Update ext/tmc-spyware-server
Update ext/tmc-spyware-server
Drop student_events table only if it exists.

We'll rename it before we run the migrations in production,
so it won't exist there.
Update ext/tmc-sandbox
Fix double render in check_api_version.
Added option to configure how pastes are visible and tested paste views

Merge branch 'master' of github.com:testmycode/tmc-server into nice

Conflicts:
	db/schema.rb