fixes broken bootstrap css link in samples
Merge pull request #154 from andygup/update_css

fixes broken bootstrap css link in samples
Fixes issue #155
Merge pull request #156 from andygup/tweak_tiledb

Fixes issue #155
add test for duplicate tile store
renamed dbStore to TilesStore
Merge pull request #158 from jabadia/jabadia-refactor-dbstore

refactor dbstore