JavaScript Improvements
JavaScript Improvements

- removed unused lines
- always use brackets for conditions
- put svg dimension detection to own function
- remove console.log from svg size detection
- addded nice notice message if dimensions not available
- set encoding global and use for file content string encoding
- code formatting

npostulart/gulp-compass-imagehelper,npostulart/gulp-sass-image,npostulart/gulp-compass-imagehelper,npostulart/gulp-sass-image