fixed fb image og:image issue
rescaling image thumbnail to 200X200 ... extension changed to _th1
Using maven repository to fetch imgscalr jar
Added jpegOptimisation in doResize function
Created a crop.groovy script to run an all images in db and a function
absPath in Resource.groovy to return absolute path.
Merge pull request #4 from rksinha/biodiv_usergroups

Biodiv usergroups
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Merge branch 'biodiv_usergroups' into biodiv_checklist

Conflicts:
	application.properties