[#2286]: Underscore could use a _.propertyResult

[monkpow]

I chose the name _.method per the above suggestion, but am happy to adjust if this does not match the project guidelines.

Fixes #2286

[coveralls]

Coverage increased (+0.03%) to 96.894% when pulling 10bc63eb35b9709576a29ddf1f35e588ffd304a0 on monkpow:master into 53086b0f9f6cb4e2fb4eede82b4ef9f74bca030a on jashkenas:master.

[coveralls]

Coverage increased (+0.03%) to 96.894% when pulling 037d5a8c9eb3c7a1e20e94848792eae5d52db7cc on monkpow:master into 53086b0f9f6cb4e2fb4eede82b4ef9f74bca030a on jashkenas:master.

[monkpow]

@megawac Thanks for the quality feedback. Updated diff addresses:

• use restArgs
• don't use this keyword, use direct reference
• Clarified comment and token in response to Question: "is this not valid when a function is provided?". Added narrative above in this thread.
• check if value is a function in the outer function.

[jdalton]

fyi lodash/method.

[coveralls]

Coverage increased (+0.02%) to 96.891% when pulling 3fa1ae3bc43045efed263d78754c050fd6cfe000 on monkpow:master into 53086b0f9f6cb4e2fb4eede82b4ef9f74bca030a on jashkenas:master.