Minor fixes to doc strs.
IE11 is still IE. Don't fool us.
Onreadystatechange support was removed in IE11.
Disable temporarily (#10906) hack using old selection&range APIs on IE11+.
Use standard selection API for hacks common to all IE versions.
Changelog entry.
Merge branch 't/10612b' into major
Initial uncleaned version of placeholder2 plugin.js
Changed default text in placeholder template and codestyle changes.
Placeholder regexp update.
Added handling for undesired keys in placeholder dialog "name" field.
Updated comments + minor codestyle change.
Renamed language entry name.
Removed placeholder2 plugin from default config.
Plugin cleanup.
Reduced count of not needed attributes for wrapping span.
Whitespace changes, extra comment removed.
Minor refactorization.
Changed method of placeholder name validation.
Removed unused language entry.