Remove redundant method definition
Changes for rc1.
Merge pull request #343 from bjlittle/release_1p2_rc1

Changes for rc1.
Revert Iris version from 1.2.0-rc1 back to 1.2.0-dev.
Merge pull request #347 from bjlittle/release_1p2_rc1_dev_version

Revert Iris version from 1.2.0-rc1 back to 1.2.0-dev.
Default tests to the 'agg' matplotlib backend.
Update module docstring
Merge pull request #354 from rhattersley/headless-tests

Default tests to the 'agg' matplotlib backend.
Use position independent code flag for compilation of gribapi
Merge pull request #357 from esc24/travis_grib

Use position independent code flag for compilation of gribapi
Basic support for varying longitude ranges.
Prevented the ability to add AuxCoord instances to the dim_coords.
Merge pull request #358 from pelson/type_of_dim_coord2

Prevented the ability to add AuxCoord instances to the dim_coords.
Merge pull request #350 from rhattersley/wrap-linear

Basic support for varying longitude ranges.
Various small documentation fixes + style improvements.
Merge pull request #261 from pp-mo/old_doc_changes_1_oks

Changes from PR.212 -- those already ok-ed.
Refactored is_x boolean methods in unit module.
Added missing blank lines after sphinx directives.
Merge pull request #362 from rockdoc/units_is_x

Refactored is_x boolean methods in unit module.
re-formatting