Fix 2 bugs in the Tool Shed's tag_handler module discovered by Bjoern Gruning (thanks!)
Merged next-stable
Add the new builds_file_path to the Tool Shed's config.
Add the new Galaxy integrated_tool_panel_config config entry to the Tool Shed so it will start up.
Test cases and test workflows to verify workflow import stability.
Ensure topological sorting is 'stable' w.r.t to first element of tuple.
This improves correctness of 64a25838085978c250a0486b516bb2c8e7c3b850.
More progress toward guarenteed workflow import step order stability.
Previous commit ensured that topsort is stable - but keys are reshuffled by position prior to being sent to topsort - in case their are "ties" when sorting by position ensure that import order is preserved before sorting on position.

This is all very dry and seemingly persnickety - but at any rate - after this commit I am fairly confident that Galaxy will import newly saved workflows that have been exported in the same order they were exported in. This means that 64a25838085978c250a0486b516bb2c8e7c3b850 is more correct.
Merge next-stable.
Cleanup test case in e7ba2469bca0cb7a1d5a8d754885537dc683d490.
Python 2.6 compat fix for 591f036.
Merge next-stable.