UP-3609 Add auto-update feature for code/db changes

Add support to automatically run db-update on portal start for PATCH
or LOCAL changes. Defaults to only run for LOCAL version number changes
Update db version for master
UP-3612 Fix error with already closed aggregations
UP-3611 Fix logic for handling aggregation catch-up
UP-3611 Fix logic for handling aggregation catch up
UP-3615 Updated default mobile icon URL to correct path
UP-3609 Fix sql translation bug in hibernate schema export

Fix db update bug where connection was closed during metadata generation
Merge pull request #88 from asgrant/UP-3615

UP-3615 Updated default mobile icon URL to correct path
Merge remote-tracking branch 'upstream/master'
Updating library versions
Add CONTRIBUTING file for GitHub UI support
Switch to MD for readme
Updated README.md
Fix readme header sizes
Updated CONTRIBUTING.md