added retweet filter

using the new exlude API, retweet filter adds an exclude for things with
"RT" in them. fixes #629
moved retweet to right
added tag input
Revert "added tag input"

This reverts commit 523824b19bc62501f9bca4773425bf30d0b5169e.
added tag input
added tag input
Merge pull request #652 from jessyurko/jessica

added tag input field to bookmarklet
Merge pull request #648 from ebensing/retweet

added retweet filter
fixes styling issue on advanced search