Fixed casing issue causing failure to load ngProgress.
Fixed casing issue causing failure to load ngProgress.

junaidrsd/sc5-styleguide,varya/sc5-styleguide,patriziosotgiu/sc5-styleguide,varya/sc5-styleguide,soulfresh/sc5-styleguide,SC5/sc5-styleguide,SC5/sc5-styleguide,patriziosotgiu/sc5-styleguide,junaidrsd/sc5-styleguide,soulfresh/sc5-styleguide