Remove twitter related synclet.

The related synclet is based on an undocumented api that doesn't
work after moving to twitter api v1.1.
make resetConfig also trigger an immediate sync
Update request to 2.14.0

Fixes a bug with basic authorization with special characters in passwords in
some environments, as well as contains the fix in the commit we were pegged to
previously (in an actual release).
Merge pull request #844 from Singly/bg-update-request

Update request to 2.14.0
Merge pull request #841 from kubes/issue_841

Remove Twitter related synclet