Use 'load_language' property as a flag to load the language files so that the constructor doesn't need to be overridden for this purpose.
Use camel case
Change to 'autoloadLanguage'
Merge pull request #1734 from okonomiyaki3000/JPlugin-load_language

Use 'load_language' property as a flag to load the language files
Merge commit 'fa0c0730429ccf0e1a406468ed2d197656a024ef' into HEAD