keybase-installer errors out with npm '0.11.13-pre'

Running the latest installer from git, I get an error about my node version. Not sure why, as the matcher in node_modules/badnode/ seems to suggest that anything >=0.10.32 should be fine. I'm running Debian squeeze/wheezy with node installed from apt-get. Details:

```
$ pwd
/home/nathan/software/node-installer/bin
$ git rev-parse HEAD
b842c4a035a905605fbdfbc0bc89c6eda24777e6
$ node --version
v0.11.13-pre
$ bash main.sh
error: Your version of node (0.11.13-pre) is not recommended; please upgrade to 0.10.32 or better
```

Reproduce the failure by running bin/main.sh with the reported node v0.11.13-pre environment. Start with the version check and node_modules/badnode/ matcher; done means the installer handles this version consistently with the stated >=0.10.32 requirement.

Written by the indexing model from the issue text.