v1.2.0rc1 bugfixes

Closes #441, #393, and #460

See merge request !221

cpulimit fix

See merge request !219

Add e2e testing via Protractor

See merge request !218

[doc] clariefied session's Algorythms-Unsynchronized Operation documentation

See merge request !216

[install] Ensure that an environment supporting Python is used by default for the installed example experiments

buildout bower now successfully fetches string_score dep

Buildout fails to finish setting everything up due to a dependency url issue. For some reason, buildout's bower can't understand `git@github.com:` urls anymore, and breaks when trying to fetch the `string_score` dep. Just changing the url style fixes it.

See merge request !214

Don't assume plotter params exist

There seems to be an edge case when running the dev setup locally where there aren't any default plotter parameters available for the plotter. This crashes the search functionality. To reproduce:
- Go to an experiment
- Click on the blue magnifying glass to search for relevant experiments
- Django should crash in `search_tags.py` giving `'NoneType' object has no attribute 'fullname'`

See merge request !215