Specify minimum version of forever.

Rather than using a specific version of forever, which is no longer
available via npm, use it as a minimum. Without this `npm install`
fails.
Clean up language in the function section.
Clean up language in the array section.
Clean up language in the types section.
Clean up language in the core section.
Clean up language in the other section.
Clean up language in the object section.
Typo fix
remove not needed english part
typo fix
typo fix, remove unused english part
typo fix
typo fix
Update master
- fix an mistranslated word: '미묘한' to '잡아내기 어려운'
- wrap the `method` keyword with link
Fixed typo
Corrected a typing error.

本省 => 本身
[ko] Up to date
Minor syntax changes
Update doc/ru/object/general.md

fixes for #63 and #148