improving homepage tiles
Merge branch 'master' of https://github.com/isenseDev/rSENSE into parachute
finished homepage tile improvements
Adding curated flag for datasets, and searchability
Merge pull request #895 from jdalphon/curate

Adding curated flag for datasets, and searchability
Merge pull request #894 from nickavv/parachute

Homescreen Projects Carousel tiles look nicer
-Added sane default for heatmap radius.
-Further decreased maximum heatmap radius - I really don't want to decrease this further, but need performance testing.
Merge pull request #897 from mmcguinn/mm843

Heatmap Tweaks
-Removed the dataset button in prject#show from the table.
-Made the export button get properly disabled like the vis button.
Merge pull request #898 from mmcguinn/mm886

UI tweaks to project dataset buttons