Update Bootstrap to v3.1.1
Update less compiler to v1.7.0
Fix db path issue, enlarge small thumbnail size
Add Bootstrap as less library
Make global alerts closeable.
Display radio input as Bootstrap button group
Add thumbnails as carousel navigation,

improve related products thumbnails
Add styles for product details page
Add image zoom as modal window (suggestion)
Merge pull request #189 from paweltin/product-details-improvements

Product details improvements