Added login info to twitter account
added initial tutorial stuff based on last years google doc
added decision point re: introductory tuts
split out announcement into separate file and incorporated Fransesc comments
edits after skype call
tweaks to format to make it display better on Github Markdown
more tweaks to formatting
and try again on formatting
fix list
Conference announcement grammatical and formatting tweaks.
Remove specification of the paper submission deadline.

From the conference announcement.  A deadline could be added later after
publication probability is proven with the publication of 2011/2012
proceedings.
Removing twitter password
Provide summary paragraph and consistent naming for bioinformatics symposium