Fixes #155
Fixes #171
Changes checkbox label from 'Flip axis' to 'Negate values'
Stretches axis to fit negated spheres
Fixes #166 by adding the missing dollar sign in the documentation
Negates the lines in comparison plots
Makes the lines in comparison plots connect after changing the axes
Adds a dollar sign to doc/installation_index
Fixes graph for comparison plots with multiple files
Merge branch from master
Fixes the color for edges and labels not changing properly when negating edges. A description of the negate axes feature is also added in the README file.
Cleans up the Javscript code
Removes a print out from the code
Changes Javascript file to make the lines update for multifile cases when changing the axis
Update the linsk for the examples

This update comes from the updates that were put in place for the worker
script running on the server updating the examples every 5 minutes.

For more information about this, see:
    github.com/eldeveloper/worker
Fixes the bug of removing too many zeros, and adds a test for it
Merge pull request #195 from ElDeveloper/update_links

Update the links for the examples
Adds double clicking feature to separator bar
Changes the zero replacement to [:-2]
Merge pull request #182 from jacksonchen/issue_155

Fixes #155, #171, and #166