* Datastores to object oriented code, using the Laravel IoC container
Change instantiation
better DI
move OpenTSDB
Small re-orgs
remove unused stuff
Fix graphs and other scripts
Use DI for all except rrd
fix up connection error handling
Add tests, fix up a "few" things
Add Config::forget()
Style fixes
Don't reference legacy code
remove accidental code paste
Add datastores phpunit groups
some tests
* rebase fixes
* some test fixes
* shorter tests
* shorter tests
* Don't except when rrdtool can't be started.
* restore tests
* fix rrd tests
* fix iterable change upstream
* fix isValidDataset
* fix invalid data bug
* fix mysql incorrect ds
* fix issue with data that is too long
* use regular data_update()
* Use log facade
* OpenTSDB mis-ordered arguments fix
* Making a singleton with different options makes different singletons. Just use the global config settings to disable datastores.
* only filter tags for datastores that won't it don't modify the tags permanently
* Update copyrights to include original authors.
* Stats for all datastores
* Fix mysql sends different rrd / other ds names
* fix snmp last stats not initialized
remove unused function
* remove unused function and move single use function closer to its use
* InfluxDB does not need to update null or U values.
Skip write if all fields are empty
* Fix smart value checks
* fix style issues
* feature: Allow customisation of rrd step/heartbeat when creating new rrd files
* revert defaults
* added docs + webui config option
* Move RrdDefinition to an Object to make them easier to create and remove the possibility of typos.
* Fix style/lint issues and missing use statements
* 3 more missing use statements
* updated doc + moved schema file
