made file download page prettier
-Added a feature to link timeseries map data with lines.
-WIP on physical scale heatmap - everything has gone totally to hell.
-Got the real distance heatmap working. I want to select scale a bit more inteligently though.
-Finished reworking the heatmap. It now works off a real-world size in meters. There is a max pixel radius for performance reasons - this should be encountered infrequently with real-world use (and has a low chance of causing any hiccups). Legacy saved vises will use thier pixel values in meters at the moment.
-Reworked the way the heatmap scale selection works to be a base 10 exponential selector with a manual entry box for specific values.
-Changed the way map startup works to get rid of an ugly timer-based wait. Everything is based on proper google maps callbacks now.
Update README to remove Mongo reference.
Merge branch 'master' of https://github.com/isenseDev/rSENSE into update-readme
-Changed name of location-based heatmap to marker density.
-Added label to check all box in vis.
-Tweaked checkbox handlers in map to be less error-prone.
Merge pull request #847 from mmcguinn/mm540

-Added label to check all box in vis.
Merge pull request #846 from mmcguinn/mm830

Changed name of location-based heatmap to marker density.
Fixed error_flash messages in edit boxes
Merge pull request #845 from NatTuck/update-readme

Update readme
-Fixed null dates being interpreted as 0 Jan 1.
Merge pull request #848 from jdalphon/jd_issue716

Fixed error_flash messages in edit boxes
Merge pull request #844 from mmcguinn/mm793

Mm793
Copy edit on field_edit.js.coffee. Captialized media opbject, and changed 'Edit Title' to 'Rename File' for media objects. Aligned editor in description box on project page. Moved Add File button down on projects page (UI).
Improved spacing for Add Description button on projects page.
Spring cleaning