RUBY-808: Make events global
RUBY-808: Server added and server removed are info level
RUBY-808: Log queries with time to debug
RUBY-808: Log commands with time to debug
RUBY-808: Log map/reduce with time to debug
RUBY-808: Log aggregation with time to debug
RUBY-808: Log get more with time to debug
RUBY-808: Log at the connection level for all operations
RUBY-808: Add legacy wire protocol message logging
RUBY-808: Set log level to info in specs
Remove cluster simulator
Merge pull request #539 from mongodb/RUBY-808

RUBY-808: Level Specific Operation Logging
Send messages separately if using gle
RUBY-787 Add in specific errors to bulk write classes
RUBY-787 Add in errors for invalid update, replacement docs and selector