Switch Travis to cartopy 0.10.0
Merge pull request #956 from rhattersley/use-cartopy-0.10.0

Switch Travis to cartopy 0.10.0
New contributors to Iris.
Merge pull request #957 from bjlittle/new_contributors

New contributors to Iris.
Merge pull request #911 from bblay/anal_pep8

anal_pep8
aggregate with string coords
new test
lic date
whitespace
review action
review actions
str agg bnd none