implemented site and section navigation; some css stuff
changed about to markdown file; added why-orcas.md; changed footer and header; updated navigation; changed some css
deleted unused entry in config.yaml; added temporary file 'probleme.txt'; resolved errors in getting-started
resolved errors in examples; added anchor in getting-started
resolved errors in dbdoc
uncommented table width
added asset: alert.png; added work in progress sign in footer; resolved errors in features and completed the table; some ccs stuff; repositioned OC Logo in the header and gave it a link
fixed images in supported-db-functions
resolved errors in ant-tasks
resolved errors in remaining and already implemented markdown files, added how-it-works.md, updated navigation