Indexed search of repository contents (for default branch only)

* Improve issue indexer

* Fix new issue sqlite bug

* Different test indexer paths for each db

* Add integration indexer paths to make clean

* Fix test : make coverage -> test

* Refactor integration tests to be able to run them in parallel

* Add custom local repository temp path

* Hotfix for integration testing

* Comment sqlite tests because of database locking issues

Avoids override of source file upon running `make test-pgsql`

Long story: settings.NewContext *adds* an INTERNAL_TOKEN if none
is found; the other ini files under integration/ all have an
INTERNAL_TOKEN

* fix collborators lack of units on orgnization repositories

* also change log level to debug

* MySQL, Postgres integration tests in drone

* Fix .drone.yml

* sign drone

* resign drone

* Integration test framework

* udpate drone sign

* Formatting fixes and move router.go to routers/

* update sign for drone