Adding inline figures image to notebook splash page and metadata table image to mgoverview page.  Also added iPython under Related Links on the notebook splash page.
Merge pull request #94 from jaredbischof/master

Editing splash pages
Merge pull request #95 from teharrison/master

now auto-execute first 2 cells (we are adding text cell at top)
Merge pull request #96 from teharrison/master

notebook caching / alerts when input fields empty