Trackster: fix display of overlapping reads by correctly resolving read length regardless of data loading/tile drawing order. Unfortunately, the easiest way to accomplish this required refactoring, hence the large commit. Pack scripts.
For _ensure_valid_session  with use_remote_user set,   when galaxy_session.user.email != remote_user_email invalidate the session UNLESS  allowing user impersonation and the remote user is an admin.
Merged in dannon/galaxy-central-prmaker/stable (pull request #469)

[STABLE] For _ensure_valid_session  with use_remote_user set,   when galaxy_session.user.email != remote_user_email invalidate the session UNLESS  allowing user impersonation and the remote user is an admin.
Updated tag latest_2014.08.11 for changeset 7748a83f3361
Fix for resetting installed toolshed repository metadata inside of Galaxy.
Merged in dan/galaxy-central-prs/stable (pull request #470)

Fix for resetting installed toolshed repository metadata inside of Galaxy.
Update tag latest_2014.08.11 for changeset 6445c0fe7612
Fix for FASTQ datasets peek/display of sequence counts.
Update tag latest_2014.08.11 for changeset 7e22f3579852
Merge latest stable.