Merge pull request #341 from akzhan/master

propagation to upstream
Restore <=IE8 behaviour in setInterval function to avoid errors reported on page load.
Merge pull request #343 from DrModesto/master

Small fix for <=IE8
Merge pull request #2 from VitaliyMF/master

Set of fixes/enhancements 
Merge pull request #344 from akzhan/master

forward to upstream
Update i18n/lang.en.js
Update i18n/lang.en.js
Merge pull request #4 from uges/patch-1

Update i18n/lang.en.js
Merge pull request #346 from akzhan/master

forward to upstream
Update i18n/lang.en.js
Merge pull request #6 from uges/master

Update i18n/lang.en.js 
Merge pull request #347 from akzhan/master

forward to upstream
Add catalan language
Merge pull request #7 from josepanguera/master

i18n: Add catalan language
Merge pull request #348 from akzhan/master

New locale
Added method to focus editor pragmatically
Merge pull request #8 from mrkmg/master

Added ability to pragmatically focus editor
Merge pull request #349 from mrkmg/master

focus programatically
patched multiple css property bug for toolbar active states
Merge pull request #10 from biegel/bugfix

patched multiple css property bug for toolbar active states