Merge pull request #125 from jdalphon/fix_login

Code cleanup and minor change
-WIP on changes to field edit and creation.
Merge branch 'master' of https://github.com/isenseDev/rSENSE
-Finished editing field edit. Now you add fields using a dropdown, which have default values are in edit mode.
-Only number fields have editable units.
Made a bunch of stylistic changes.
Merged.
Merge pull request #127 from efairbanks/fieldgeolocation

Made a bunch of stylistic changes.
Merge pull request #126 from mmcguinn/master

Changes to field edit/creation