fluid height for header
text shadow in header for better legability
refinements and content
changed marketing icons
google analytics integration, fixes #95
fixed deprecation warning
bugfixes and content for subscription mail, fixes #90
added descriptions (closes #91) and images (closes #68)
changed to a better looking background
Merge pull request #97 from btcgames/landingpage

Landingpage semi-final version
text changes and github link
corrected typo
refined status messages
added newsletter field, fixes #98
text change
removed deprecation warning
text changes
minor changes, spell check
spell fix
merged