benchmark changes
Merge branch 'devel' of github.com:radical-cybertools/radical.pilot into devel
add session cleanup utility
Merge branch 'devel' of github.com:radical-cybertools/radical.pilot into devel
scattered fixes to examples and plotter
merge...
clearer plots
revert change on pilot
add cleanup utility
add simple inspection tool

only supports one mode right now: find session by pilot ID.
fix indentation in bootstrapper.

Honestly, folx, please dont obfuscate code on purpose...
fix handling of empty args (ignore them)
work on tickets

 - resilience against missing / incimplete VE and intermittent pip/easy install errors
 - introduce cleanup flags to bootstrapper
 - take care of race conditions in backfilling scheduler, on failing / finishing pilots
 - fix some layout issues in plots
 - better error reporting in unit manager and backfilling scheduler
 - simplify and speed up pilot state checks
 - add max reconnect-fail count to pilot state checker
fic #244
fix #113
make sys.exit usable in callbacks

This uses a somewhat crude way -- but since all threads are daemons anyways, that won"t make our exit handling any worse.  This should be revised once we improve the thread managemenent.
better exit code in example
Merge branch 'devel' into experimental
scattered fixes toward cleanup and working examples
add jenkins control files