[conf] Change email sender to be bernstein-conference@..
[css] Update custom bootstrap
[less] change the horizontal padding for .main-content
[views] template: Use conference short name in navbar
[view] template: Re-do footer to be smaller with no columns
[views] impressum: replace dummy text with actual info
[views] contact: replace dummy text with actual contact info
[views] AbstractList: Add a page-header with the conf name
[less] overwrite margin-top for .page-header
[assets] Change "C1" to simulate BC14
[less] Add a .conference-logo class
[views] Conference: Re-style the page and add the logo
Merge pull request #91 from gicmo/ui2

UI re-styling part II, the style strikes back!