Closes #4 and closes #5

Signed-off-by: Nils Van Geele <nils.vgeele@gmail.com>
Merge pull request #11 from se1-1314/implement_sessions

Closes #4 and closes #5
Init css files
related: #12
importing and using css files
alse edited core.clj to wrap these static file to be able to actually use them.
Fixes #12
Added country flags for language selection
Related #9
Added country buttons to layout page for language selection
Interface only
Fixes #9
Merge branch 'css_import' into Language_selection_#9
Static import was needed for language selection images
therefore merged locally and will push as one in stead of pushing to server first
edited css file
created class for country flags
fixed oversized country flags
uses country-flag class in xiast.css