National: applied the 960 grid system for easier theming.
Divided national theme into 1) stripped clone theme and 2) new national theme that only adds national-specific text and visual content.
National: fixed minor errors caused by Timo's last commit.
Removed most files under Content in national theme to inherit them from clone theme.
Many colour changes to clone theme and corresponding changes to national theme to override them.
Removed Finna-related colours from clone theme and reapplied them to national theme.
National: responsive theming.
Merge branches 'theme-dev' and 'theme-dev' of https://github.com/KDK-Alli/NDL-VuFind into theme-dev

Conflicts:
	web/interface/themes/national/Search/home-content.en-gb.tpl
	web/interface/themes/national/Search/home-content.sv.tpl
National: changed css file order to make overriding more predictable.
Merge branch 'master' into theme-dev
National: renamed css class "container_24" to "content" to facilitate responsive theming.
National: auto refresh for date visualizer on screen resize & other responsive stuff.
National: a small fix to my previous commit.
National: results page responsive theming.
National: record page responsive restructuring.
More work on clone and national themes.
Merge branch 'master' into theme-dev
Clone: added Finna-logo
Clone theme: basic front page styling to match preliminary layout sketch.
National: more responsive elements.