Changes to loading_iris_cubes.rst, copied from PR.212
Further changes to loading_iris_cubes.rst.
empty file handing
Changes to cartography.py, copied from PR.212
Small style + readability fixes.
Merge pull request #173 from bblay/mtfile

Empty file handing
Merge pull request #265 from pp-mo/old_doc_changes_3_docs_cubeload

Changes to loading_iris_cubes.rst, copied from PR.212
Merge pull request #180 from bblay/g1dup

GRIB1 duplicate rule
Revert area_weights calculation pending rewrite.
Merge pull request #268 from pp-mo/old_doc_changes_5_cartography

Changes to cartography.py, copied from PR.212
msg fix
exception translation
review actions