Importing plugins with relative paths at travis

[qfox]

According to #731

It doesn't work for relative paths at travis ;-(
Tests: https://travis-ci.org/jscs-dev/jscs-jsdoc/jobs/40507024
Code: https://github.com/zxqfox/jscs-jsdoc/tree/feature/pluginization

plugin/
  index.js
  test/
    test.js

test.js:

checker.configure({
  plugins: ['.']
});

basePath at dev machine is plugin and there are no troubles.
But at travis it couldn't find '.' module so it looks like basePath is different.

[mdevils]

Take a look: jscs-dev/jscs-jsdoc#55

[qfox]

@mdevils Thanks! What you think about passing './lib/index' as plugin path? Do you like to do it this way?

[mdevils]

It's OK for testing your plugin. Users will not have problems with your plugin, they will be fine with just plugin name.

[qfox]

@mdevils Well, okay. Let it be like that. But better to make a note in Plugin writing guide about testing.

Thanks! I'll merge this soon.

[qfox]

Updated wiki https://github.com/jscs-dev/node-jscs/wiki/Plugin-API