move queryhelper pattern into utils module
Merge pull request #261 from plone/vangheem-queryhelper

move queryhelper pattern into utils module
Simplify Gruntfile.js

Current Gruntfile.js is growing fast with every library that we add and every
bundle that we create. It almost become impossible to manage 1000 line long
file.

things in this pull request:

- created MockupGrunt helper
- rewrite Gruntfile to use MockupGrunt
- fixed upstream repos where bundled resources go
renamiing compile -> bundle
downgrade karma-sauce-launcher, switch ace to ace-builds, turn debug logging for karma
another try to make travis working
better define SL browsers
another try to make travis happy
redo travis secrets
typo
back to previous secrets