added interactions role to process
interactions modifications

Conflicts:

	root/templates/classes/gene/overview.tt2
enabled interaction view on process page
dealt with uninitialized var warning in wbprocess
wormbase.js de-asserting nearby interactions checkbox by default: in progress

Conflicts:

	lib/WormBase/API/Role/Interaction.pm
nearby interactions disabled by default on process pages.

Conflicts:

	lib/WormBase/API/Role/Interaction.pm
pathways widget with iframe and wikipathways link
Issue #337
* Added pathways widget template
* Added null case if process has no pathway annotated
Merge branch 'issue-337' into staging

Conflicts:
	lib/WormBase/API/Object/Wbprocess.pm