zoom controls updated, axis-specific zooming out and resetting works, zooming in broken for all axes
Merge branch 'master' of https://github.com/isenseDev/rSENSE into parachute
added icons to project/vis/tutorial index pages, just cause
fixed pluralization of register errors
give up on zoom in
Merge pull request #1303 from nickavv/parachute

Better Zoom Control
-Made all news items visible to admins.
-Fixed terrible way to ask if admin.
Update readme for better install info.
Remove the reminants of "username".
Merge pull request #1308 from mmcguinn/mm1233

Mm1233
Copyedit on cloning.
Merge pull request #1311 from NatTuck/update-readme-again

Add 3D nested pie chart viz; Requested by Skittles
Changed visUtils.coffee to no longer display null units on the titles for the X and Y-axes of the visualization.  Yay first change!
Merge branch 'master' of https://github.com/isenseDev/rSENSE into remove-obsolete-fields

Conflicts:
	db/schema.rb
Merge pull request #1312 from NatTuck/remove-obsolete-fields

Remove the reminants of "username".
Merge pull request #1314 from kcarcia/UIfixes

Copyedit on cloning
Merge pull request #1315 from JKinsman1993/jk1285

Changed visUtils.coffee to no longer display null units on the titles fo...
Merge pull request #1310 from mmcguinn/mm1258

-Made all news items visible to admins.
-Fixed test name.
-Made manual clone names work.