Merge branch 'master' into space/standardized
Change Photo/Heading

Photo:
* Take away the broken slideshow
* Get photos from Flickr group and shows in the “Host event” section.

* Heading: change style with background image.
Merge branch 'master' into space/standardized
Merge pull request #96 from moztw/space/standardized

add flickr per #49 's request