Tags visible in side-bar
pelicanconf.py: Remove superfluous config entries

Either they were commented out or non functional.
Renamed dirs to order the menu
VIANNA.css: adding license notice
VIANNA.css: tweak background color and font sizes

make them fit the official MHH CI color scheme
VIANNA.css: Links in content area: underline red
VIANNA.css: MHH red bar at top
VIANNA.css: white text in menu bar
VIANNA.css: style rop down menues
VIANNA.css: iframe without border (but has shadow)
VIANNA.css: style markdown indented box (pre)
VIANNA.css: Style the about me box
VIANNA.css: Style general box (bootstrap .well)
VIANNA.css: Style the horizontal ruler (HR)
VIANNA.css: Style background color of .panel
VIANNA.css: Style tables to MHH CI colors
VIANNA.css: Tweak indents of lists (less big)
VIANNA.css: Main text justified
VIANNA.css: tweak text sizes of smaller headings
Making Impressum page hidden and link to it in

... sidebar