fix \&/#bifoldMap
separate deprecated methods

this changes does not break source compatibility,
and fix unnecesary deprecation warnings when using `import Scalaz._`
Note support of sbt.
Merge pull request #483 from xuwei-k/these-bifoldMap

fix \&/#bifoldMap
Merge pull request #484 from xuwei-k/IdOpsDeprecated

separate deprecated methods
Merge pull request #485 from S11001001/topic/sbt-thanks

sbt support note