add compiler pass for bundles to register mappings
refactor instantiation to use factory methods
fix typo and cleanup docblock
fix issues on compiler pass
fix drop and create command for connections with master slave configuration
adjust to https://github.com/symfony/symfony/pull/7755
use drivers from common, not deprecated orm ones
improve doc on managerParameters
ws fixes
Removed deprecated call

Fixes symfony/symfony#7875
Merge pull request #177 from dbu/doctrine-register-mappings-pass

[WIP] add compiler pass for bundles to register mappings
Merge pull request #180 from gimler/master_slave_command_fix

fix drop and create command for connections with master slave configurat...