Replace Tool Library pager with "infinite scroll" effect

[petelandvt]

I added & configured the GD Infinite Scroll module. We also had to modify the bootstrap_farmhack theme (.info, template.php, and js files) to get the infinite scroll to cooperate with the packery js (which makes the tools align nicely into two columns on wider displays).

For the Tool Library only, I moved the Creative Commons license into the "tags" block since we need to remove the footer to allow infinite scrolling.