Extract JSHint settings to .jshintrc

- Changed jQuery predefs to "jquery" flag
- Removed console predef since it was only used in commented out code

___
PS: bumping JSHint to the latest will produce the following errors
```
src\js\core.js: line 28, col 5, Redefinition of 'mfp'.
src\js\core.js: line 86, col 13, Read only.
```