Update Gruntfile.js

add stdout option in shell:jekyll task
Add src/fonts/glyphicons

.eot, .svg, .ttf, .woff
Update src/less/config/variables.less

fix font path src
Update Gruntfile.js

add copy:fonts task
Dist fonts/ path

with glyphicons
Add demo/ path

with glyphicons page example
0.0.47