Fixed support of non jpg images.
Replaced the public generic hook by a specific one.
Cleaned helper functions.
Separated generic and specific functions and fixed some issues.
Updated plugin with patches from the upstream branch of Julien Sicot.
Implemented internationalization and added French translation.
Normalized css management and added an id for the embedded iframe.
Improved search and highlight mechanism and example.
Implemented custom library to seach inside XML refNum and OCR metadata.
Adapted scale choice so it can be customized.
Added backlink to item show view.
Link to PDFtoc

Better link for PDFToc, on github, up to date.
Allowed to set the mode page in the hook and some fixes.
Released version 2.3.
merge pull request from Daniel-KM