* Update database tests to prepare for more
Add test_db_name, test_db_user, test_db_pass to allow developers to have a dedicated testing database.
Extract DBTestCase to include common functionality for database based tests. Use transactions to isolate tests.
Enable STRICT_TRANS_TABLE, test for it's existence (only when we have a user that can set it)
Move the database cleanup to register_shutdown_function, this makes it happen every time at the end of tests.
If the was not empty, only truncate the tables (that aren't prepopulated) instead of drop the database.
Use our schema functions for schema tests.
Fix some missing array indexes so it doesn't clutter test output.
* Fix style
* Add support for custom MySQL unix-socket
* NULL must be lowercase!
* Naive edit of html/install.php
* fixup
* Refactor dbConnect
Use it everywhere
* $config needs to be global
Don't need to set $database_link
* small cleanups
* Initial support for graphite
* Enable graphite include
* fixed typos.
* Fixed port naming to graphite metric names
* Added documentation for Graphite
* added documentation for graphite
* fixed style
* replace / with _ in interface names for graphite
* sets default graphite port
* adds rrd-name tags to the metric, otherwise metrics get lost
* add suggested storage schema for graphite
* add whitespace
* Updated to show some output
* bad english
* initial work to standardise collation
* more updates
* final bits for collation update (famous last words)
* Rename 165.sql to 166.sql
* Update schema version inside 166.sql
* moved schema file 166->171
