Adding likes to the filters for users page
Cleaning up code, changing things, adding likes
Merge branch 'master' of git://github.com/isenseDev/rSENSE into jd_issue1061
GPX parsing should be much better now.

The parser now looks at the first track point to get an idea of what values are inside,
no longer hardcoded to lat,lon,time,name
1) Upload button for media objects is now not on the page if you are not logged in
2) Fixed? the modal for images to resize to the size of the image. Requires waiting until the
picture is loaded on the dom, but its better then the alternatives for now
Removing non file-safe characters from export
1) Call parameterize on the experiment title
2) Call parameterize on the data_set titles
Addresses #1071
create data set renamed contribute data, displays message when not logged in
Merge pull request #1074 from nickavv/parachute

Create Data Set -> Contribute Data
Merge pull request #1073 from jdalphon/jd_issue1071

Removing non file-safe characters from export
Merge pull request #1069 from jdalphon/hide_addfile

Edits to media_object box
Merge pull request #1068 from jdalphon/fix_gpx

GPX parsing should be much better now.
Should now pass tests
- @contributions was not defined so asking for its length would break everything ever
Fixing tutorials
- Removing santitization step for tutorials (we trust admins)
- Removing ajax for creating a tutoria (now a form sumbit)
- Made tutorials button a form
Turning on source editor for ckeditor
-Added source button to config for ckeditor
Merge branch 'jd_issue1075' of github.com:jdalphon/rSENSE into minor_changes
Adding publish option for tutorials to show page
Merge pull request #1076 from jdalphon/jd_issue1075

Fixing Tutorials
Only admins should see that checkbox
Flipped logic so that publish uses hidden
Updating tests to correspond to changes in how tutorials work