Version 1.6.0

Fixed Bugs:

• The width or the height must be an integer not a float #29 (badlee)

Implemented Enhancements:

• HTTP Stream #35 (FedeMM)
• Add a 'line spacing' option to addText() #104 (eddyclock)
• err TypeError: Cannot read property 'text' of undefined #106 (ninas880025)
• Added bowser support, gulp build of bundle #107 (santi-git)
• Add increase/decrease indent for bullets #108 (sangramjagtap)