Fixed various links that were broken, mislabeled, and/or pointed to wrong destinations.
Merge pull request #1628 from EricDunsworth/v3.0-broken-link-fixes

Demos: Fixed various links that were broken, mislabelled, and/or pointed to wrong destinations
Reversed order of plugin and polyfill loading to better deal with nested plugin and polyfill calls.
Reversed order change for one of the polyfill calls to avoid undoing an early reverse ordering.
Corrected an incorrect variable being used for an array index of the manual polyfill init.
Merge pull request #1636 from pjackson28/v3.0

Reversed order of plugin and polyfill loading to better deal with nested plugin and polyfill calls
Resolved merge conflicts.