Update pick and omit to accept a predicate
Merge branch 'pick-pred' of https://github.com/jasonLaster/underscore into pick-omit
Update pick/omit to take a function callback.

* Clean up tests.
* Branch for iterator case.
Update documentation.
Revert call signature change.
Spacing.
Simplify _.max and _.min

Remove the native apply case
Use @jdalton's implementation of _.max/_.min
Merge pull request #1423 from megawac/_.max

Simplified _.max and _.min
Loops.
Merge pull request #1485 from braddunbar/pick-omit

_.pick and _.omit accept a predicate
_.omit via _.pick
Merge pull request #1501 from mehdishojaei/improve-omit

_.omit via _.pick
clean implementation of _.omit; it can be even cleaner if we add _.not
add _.complement
define _.reject as the complement of _.filter
Merge branch 'complement' of https://github.com/davidchambers/underscore
Fixes #1503. Stops the bikeshedding.