Supports 'H/V', 'EUC-H/V' and '90ms*' CMaps
Merge branch 'master' of https://github.com/mozilla/pdf.js
Added tests for PDFs having 'H', 'EUC-H', and '90ms' encodings
Merge pull request #2567 from vyv03354/master

Supports 'H/V', 'EUC-H/V' and '90ms*' CMaps