Convert single and double quotes

Using the SmartyPants lib
Add instructions to install composer libs
Merge pull request #96 from mfairchild365/issue-92

Convert plain ASCII punctuation characters into "smart" typographic punctuation
Use a single line-feed as paragraph break in short description
Account for JS date rollover in month jump keyboard shortcut

Setting the date of a JS date will automatically correct the date to the
last day of the previous month.