Add mathjax to runtime.
Add WYSIWYG editor, and math typography support.

[#57226316]
[#67313302]

https://www.pivotaltracker.com/story/show/57226316
https://www.pivotaltracker.com/story/show/67313302
Bump smartgraphs runtime, w/ support mathjax & bullet lists in intro txt

https://www.pivotaltracker.com/story/show/57226316 [#57226316]
https://www.pivotaltracker.com/story/show/67313302 [#67313302]
Serve tinymce locally so that we can add our own plugins...
Create a tinyMCE "maths" plugin to help with entering expressions.
[#67313302]

https://www.pivotaltracker.com/story/show/67313302
Remove console.log(!)
Change positions of delete and save buttons when editing a page.

[#67753442]

https://www.pivotaltracker.com/story/show/67753442
Add another way to delete pages from an activity.

related to: [#67753442]

https://www.pivotaltracker.com/story/show/67753442
Modify TinyMCE configuration:  Paste from Word, BIG and Normal font &etc

remove undo-redo
remove math
add paste without formatting
add HTML edit
add regular big and huge heading sizes
[#57226316]
https://www.pivotaltracker.com/story/show/57226316
Smartgraphs runtime: Add h1, h2, and em styles to .text-wrap areas.

[#57226316]
https://www.pivotaltracker.com/story/show/57226316
"big" format should be h2.
Fix FF & Safari bug with right-aligned "Save Page" button.

[#67753442]
https://www.pivotaltracker.com/story/show/67753442
Bump smartgraphs runtime to address more formatting in .text-wrap css
Merge branch 'staging' into production

* staging:
  Bump smartgraphs runtime to address more formatting in .text-wrap css
  Fix FF & Safari bug with right-aligned "Save Page" button.
  "big" format should be h2.
  Smartgraphs runtime: Add h1, h2, and em styles to .text-wrap areas.
  Modify TinyMCE configuration:  Paste from Word, BIG and Normal font &etc
  Add another way to delete pages from an activity.
  Change positions of delete and save buttons when editing a page.
  Remove console.log(!)
  Create a tinyMCE "maths" plugin to help with entering expressions. [#67313302]
  Serve tinymce locally so that we can add our own plugins...
  Bump smartgraphs runtime, w/ support mathjax & bullet lists in intro txt
  Add WYSIWYG editor, and math typography support.
  Add mathjax to runtime.