work in progress
add tests; support for default values
improved dimensions in wmts kvp requests
add checks for KVP requests
use lowercase dimension names
ignore case in WMTS KVP dimensions
check dimensions in WMTS capabilities
except different casing
allow . and : in WMTS RESTful layer, tilematrixset and styles
prevent caching of dimension layers
document WMTS dimension support
Merge branch 'master' into wmts-dimensions
update formatting of wmts dimensions doc
Merge branch 'master' into wmts-dimensions
speed up configuration loading with tagged sources

don't deepcopy whole SourceConfiguration object but only the parts
that change (i.e. the conf dict)
Merge branch 'master' into wmts-dimensions
Merge pull request #54 from olt/wmts-dimensions

Add support for WMTS dimensions