DetectRTC v1.3.5

1.3.5 is latest stable release.

The most important feature in this release is "unit-tests" via "protractor+browserstack+travis". Refer this commit: b7f609b

Other commits:

1. do not force or set our own "document" object
2. fixed #46
3. merged pull-request #42 : better code for handling array
4. merged pull-request #41 : Enumerate only the own properties of an object
5. fixed #38 : Not finding all videoinputs on Android --- It was an important fix
6. merged #27 : chrome-extension: protocol added to trusted getUserMedia protocols