added support for method match only

[p00j4]

To get the solution for #1050
Use Case
nosetests {test_path} --matchMethod={val}
This will try to match on methods only (not applying the same regex on Files/Dir/module etc.)
so now user can use both, 1 for all other match except method.

Cases Tested

1. when matchMethod is used alone
2. when match is used alone
3. when both are used

[p00j4]

it fails for

no such option: --use-mirrors   
The command "pip install -r requirements.txt --use-mirrors" failed and exited with 2 during .

shall I remove the --use-mirror flag from travis file and retry?

[p00j4]

@jszakmeister can you please help here

[p00j4]

ping @jszakmeister

[p00j4]

i'm wondering if this repository is open for adoption or not to be touched at all. 🤕

[jszakmeister]

It's looking for a maintainer, and has been for a long time: https://groups.google.com/forum/#!topic/nose-dev/rkofU1WdNNc

Note: Nose2 is largely viewed as the successor to Nose: https://github.com/nose-devs/nose2