Update svgToPdf.js

Fixing a default value check which didn't check for the existence of the correct property.
Merge pull request #2 from bgribaudo/patch-1

Fixed default values
Unneeded assignment in default value check removed
Adding jsPDF plugin wire-up
Merge pull request #3 from bgribaudo/patch-1

Unneeded assignment in default value check removed (thanks @bgribaudo)
Merge branch 'patch-2' of git://github.com/bgribaudo/svgToPdf.js into jsPdfApi-dev1
indentation; roadmap
Roadmap changes