[WIP] Release/0.1.2

I'm in the process of going through and triaging the existing issues/PR's and consolidating the changes (if any) into this branch. 

So far I've done the following;

* updated express version used in tests to ^4.3.0
* added the changes (if any) from the following
   
    #42,  #5, #41,  #37, #35

### Todo

- [ ]  verify https://github.com/visionmedia/express-namespace/issues/33
- [ ]  verify https://github.com/visionmedia/express-namespace/issues/32
- [ ]  write a test (or example) for https://github.com/visionmedia/express-namespace/issues/31
- [ ]  write a test (or example) for https://github.com/visionmedia/express-namespace/issues/26
- [ ]  verify https://github.com/visionmedia/express-namespace/issues/28

### Issues that could be closed

- https://github.com/visionmedia/express-namespace/issues/3
- https://github.com/visionmedia/express-namespace/issues/42
- https://github.com/visionmedia/express-namespace/issues/41
- https://github.com/visionmedia/express-namespace/issues/36
- https://github.com/visionmedia/express-namespace/issues/8
- https://github.com/visionmedia/express-namespace/issues/12