Add recent conferences to Resources page

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Update design page

 * remove JVM material

 * remove shell material

 * edit for capitalization and usage

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Update community section

 * Add community call to contact page

 * Usage edit for people page

 * Add link to formatting and sending patches document

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Usage edit and add link in Why New OS page

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Merge pull request #99 from dmarti/updates

Updates