support times in default json handler
tests for json_handler
Merge pull request #221 from dimagi/json-time

support times in default json handler
pep8 and minor stylistic changes
fix travis build
Merge pull request #222 from dimagi/datespan-pep8

pep8 and minor stylistic changes
allow supplying additional details for logging
Merge pull request #223 from dimagi/logging

allow supplying additional details for logging
fix no REQUEST attribute bug
Merge pull request #224 from dimagi/request

fix no REQUEST attribute bug
add line profile decorator
Merge pull request #225 from dimagi/line_prfile

add line profile decorator
line profiler comment
Merge pull request #226 from dimagi/prof_comment

line profiler comment
Fix exception
Accept upper case
Merge pull request #227 from dimagi/fix-user-upload

Fix user upload
don't fail hard when invalidating a non-existent cache
more readable repr for pagination util
Merge pull request #229 from dimagi/pagination-repr

more readable repr for pagination util