darkly: clean up modal and breadcrumb code, fixes #262
clean up front page style
increase padding on preview panels
fix border on input-group-addon states
add alert for ebook giveaway
fix close buttons in panels, closes #266
remove alert for ebook giveaway
3.1.1 -> 3.2.0
fix bsa code
update sponsor
fixes invisible close buttons, closes #272
fix popover text color in contextual elements, closes #268
remove underline on buttons in tables, closes #267
fix tooltip and popover in test
update sponsors on v2 site
shrink alert on v2 site
make link to v2 site relative
update products that use bootswatch api
add missing themes to bootswatchlet, closes #274
revert dark modal headers to light, closes #277