#3192: Menu path to determine if a user exists.
#3192: Handle existing users.
osharvard theme updates. new icon, many css tweaks. #3193
Merge pull request #3279 from openscholar/3192-user_exists

Menu path and callback for user existence, looks good, only failing test is ok
os harvard theme. update twitter block css. #3193
os harvard theme: made twitter block absol. positioned. #3193
#3204: Fix js error on link form when there are no files.
add update hook and update info file #3244
#3204: Load everything needed to insert a link to the first file ever uploaded to a site.
Merge pull request #3286 from openscholar/sap-create_via_rest

Fix tests and send e-mail on site create
os harvard theme: add divider line next to twitter block. #3193
osharvard theme: add css for positioning stat site count. #3193
scholars theme. fix search page filters field position. #2967
hc slideshow/side caption style. make controls fixed so they dont move up and down where theres more or less text. #3191
classic theme. ivy flavor. add a 8px's of padding to people node content div. #3210
#750 #3249: Properly read and correct links to internal paths.
Merge branch 'SCHOLAR-3.6' into SCHOLAR-3.x
Merge pull request #3290 from openscholar/3272

Fix failing test
os harvard theme: remove twitter and add site search and analytics (w/icons). #3193
os harvard theme. add txt for new why use section. shrink analytics icon.#3193