hide qrcode behind a function (mebjas#62)

* hide qrcode behind a function

qrcode scanner updated to latest, file scan to have min width

minor alignment fix

Added support for Html5QrcodeScanner (mebjas#52)

* Added support for Html5QrcodeScanner

* Formatting fixes to code

* reformat with space fix

* reformat document

* tabs to space

* minor code fixes

Updated changelog with v1.0.9 version details

Merge pull request mebjas#32 from mebjas/shaderregion

Added support for qrregion borders and dynamic update

Merge pull request mebjas#28 from mebjas/viewfinderfix

Fix inconsistency between viewfinder qrbox and actual feed in canvas

Merge pull request mebjas#24 from mebjas/file-support

Added support for local file QR Code scanning

hack to refresh asset cache in github

Merge pull request mebjas#15 from mebjas/nojquery-promise

Refactor: Migrated to ECMAScript class & Promise based APIs