fixes bug 933487 - fuzzing ?page param for /exploitability, r=rhelmer
Fix Bug 933443, do not show urls table or execute JS when there are no results
Merge pull request #1644 from ossreleasefeed/bug933443-do-not-show-table-call-tablesorter-for-no-results

Fix Bug 933443, do not show urls table or execute JS when there are no results
fixes bug 929197 - refactor use of connection objects, r=selenamarie
Fixes bug 930086 - Not operator is accepted everywhere. r=peterbe
Merge pull request #1630 from AdrianGaudebert/930086-not-operator

Fixes bug 930086 - Not operator is accepted everywhere.
fixes bug 928048 - crontabber to store all state in postgres instead of json file
removed some old junk
now with 96% test coverage
rebase and upgraded down_revision
fixed the unique constraint
close your connections Dave
no un-necessary connection context utility
no need to pop when changing a key in a dict
remove redundant 'else:' statement
rebase fix