Venkatram Harish Belvadi

Results 2 issues of Venkatram Harish Belvadi

jquery.sidenotes.min.js carried two instances of `this.$footnoteContainer.size()` which both threw errors and broke the plugin. These have been updated to this.$footnoteContainer.length and everything now works as expected.

Branching out the second issue pointed out in #4 to make it easier to troubleshoot.