updates submodules - missed including this in v2.2
Merge pull request #252 from andygup/update_submodules

Update submodules
force update submodules - didn't take on 1st attempt
update change log
Merge pull request #253 from andygup/update_vendor_2

Force update submodules
initial commit of get started for tiles
map works now. Finalized Step 4
Updated change log
General cleanup
Add mention that tutorial(s) are now available
Merge pull request #254 from andygup/get_started

v2.2.1
Merge pull request #255 from andygup/gh-pages

Update gh-pages