minor template and conf changes to use config properties than hardcoded names
- removed separate from address for emails send for newuser,userdeleted
etc.,
- changed name in activation email to username rather than email address
- fixed null pinter when there is no name is fetching suggested
usergroups
- fixed nullpointer while publishing to search index on user profile
updation
- added app.siteCode to refer to site specific style file, header and
footer.
- moved common css rules to biodiv.css
- removed inline map dimensions
Merge branch 'biodiv_usergroups' of https://github.com/strandls/biodiv into biodiv_usergroups

Conflicts:
	bbp-config.groovy
	grails-app/views/common/observation/_showObservationMultipleLocationTemplate.gsp
	grails-app/views/emailtemplates/addObservation.gsp