Merge pull request #139 from dimagi/perf_monitoring_fix

fixing accuracy of stack and request printouts
fix bug in couch profiler that was incorrectly returning empty docs for missing doc GETs
Merge pull request #140 from dimagi/perf-fix

fix bug in couch profiler that was incorrectly returning empty docs for ...
wip adding cache tracing for devserver
allow updating indicators in bulk
Merge pull request #142 from dimagi/mvp-fixes

MVP Fixes: allow updating indicators in bulk
these should be for debug
Merge pull request #143 from dimagi/mvp-fixes

these should be for debug
removing cruft
Merge branch 'master' into couch_cache