[less] Add new color palette
[css] Typography: Change fonts to Open Sans + Garamond
[css] Replace upstream bootstrap with our own version
[css] put navbar into the container & style colors
[views] Template: Add a footer and put impressum+contact in
Merge pull request #89 from gicmo/uirefresh

First part of the UI style changes

Cool
Merge pull request #88 from asobolev/master

permissions management for Conference / Abstract (service, controller)

LGTM
Abstract: add cascade fixes issue with updates
model.js: toObject converts "" to null
editor.js: cancel editing in modal boxes
editor.js: refactoring method names
editor.js: display character limits in text editor
Abstract: add isTalk and reasonForTalk
Model: new model for topic

Move model AbstractGroup to own file
Model: better equal method
Topic: add toString method
Conference: add topic to conference model
Topic: support topics in assets, services and js models
Bootstrap: add glyphicons
editor.js: improved editor