Added user choose to taxon_changes/index.
Enable owner filter on dashboard.
Tried to get it to handle unparsable times a little more gracefully.
Fixing some more asset paths
A number of bugfixes that came up during NatureWatch import.
Merge branch 'master' into assets
Updated relative path of iconic taxon icons; Updated gems and config for asset compiling
Removed redundant config
Merge branch 'assets' into asset_compression