[events-calendar] Fixes off-by-one error

pe.date.convert(Array) expects months in zero-base format.
Merge pull request #1864 from berubs/issue1862

[events-calendar] Fixes off-by-one error
Multimedia: added data-role='none' to stop jQuery Mobile from enhancing controls
Merge pull request #1871 from patheard/tabbed-multimedia

Multimedia: added data-role='none' to stop jQuery Mobile from enhancing controls
Fixed #1886 by forcing UTF8 on i18nMergeTask for all OS
Second fix for #1886 dealing with the output on non-UTF8-default systems
Third fix for #1886 by forcing loading the template in UTF8
Forced UTF8 on all IO operation in Ant
Removed forced height from module-spotlight to resolve #1809.