Add support for multiline tweets.
Merge pull request #8 from pkwarren/multiline_tweets

Add support for multiline tweets.
Reply to the sender with the error if one occurred
botname "gesture"
Only return image results that have a 200 response header
Detect images using HTTP content type.

Changes the algorithm for looking up images from 'gis' plug-in to
perform a HTTP head request and then compare the resolved URL's
content type.
Update to return redirected URL.
Merge pull request #10 from pkwarren/better_image_detection

Detect images using HTTP content type.
Delegate unmarshaling efforts to the util package
Append suffixes to urls to get clients to render the images
get all gis results in 0.5s, then display one at random
Don't wait for timeout for results to be returned.

Adds a separate error channel for errors, and tracks the total number
of responses returned, exiting early when everything has come back.
Other misc cleanups.
Merge pull request #13 from pkwarren/break_early

Don't wait for timeout for results to be returned.
Fix lol.jpeg being added to .jpg urls
Yeah I did this.
Merge pull request #17 from pkwarren/case_insensitive

Yeah I did this.
Accommodate a null results response from causing an unmarshaling error
Decode the url, and add a lol=lol.extension instead of just lol.extension
Oops
Added gesture.conf to .gitignore