Adding options to .jshintrc

I added the following options to the .jshintrc file and have included their description from the jshint documentation:
#### bitwise:
 This option prohibits the use of bitwise operators such as ^ (XOR), | (OR) and others. Bitwise operators are very rare in JavaScript programs and quite often & is simply a mistyped &&.
#### camelcase:
This option allows you to force all variable names to use either camelCase style or UPPER_CASE with underscores.
#### node:
This option defines globals available when your code is running inside of the Node runtime environment.

And I changed quotmark to be more specific so it outputs better errors.