Added IntelliJ IDEA workspace to .gitignore
Fixed mixed tabs and spaces (replaced tabs with spaces)
Fixed typo
Fixed inappropriate JSDoc params
Added missing semicolons and proper indent
Fixed consistency of blank lines around comments
Merge pull request #60 from anton-rudeshko/minors

A bunch of minor fixes

Added IntelliJ IDEA workspace to .gitignore
Fixed mixed tabs and spaces (replaced tabs with spaces)
Fixed typo
Fixed inappropriate JSDoc params
Added missing semicolons and proper indent