update README
Merge commit '8712aebb50d50915172e2f3e116cb03a47891092'

Conflicts:
	README.md
fix typo
Merge commit '3df86c0b4e3c79d191f3c378ab4df5921ada9283'
Merge commit 'd6b180e3f593d205d6e76e6e7b95ce65402a5ac2'

Conflicts:
	README.md
added stepUp to the backend. Converted other backend methods to all use it. started working on fixing bugs + tests
fixed up && tests
bugfix. optimizations
bugfix. color output tweaks.
fixed stepdown test to work with new result signature
added catchall CLI command
merged soitgoes/master
whitespace, formatting, semicolons
added default mite.config options
moved audit out to its own module. refactored necessary stuff due to the move
fixed event emitter memory leak
fixed stepdown bug. added eventEmitter support for executed migrations.
moved up (cli) to its own module + added progress reporting. Refactored logging to its own module so its easier to replace colors sometime soon
moved remaining cli commands out to their own modules.
added progress to stepDown CLI. added backend support + tests for down