SciTools/iris — pull request #1439 by pp-mo (2014-11-17 16:46:15+00:00)
Title: Support loading of LBC type fieldsfiles.

Modifies existing ff module to treat LBC files specially :
* various key values are assumed as part of the format + not recorded in the lookup headers
* this means especially LBTIM, LBVC, which concepts have a specific interpretation for LBCs
* there are multiple 2d fields per lookup table entry (alternatively, they have 3d data)
* we are returning this as a sequence of 2d fields, to be compatible with the existing loading code
* the usual per-level layer coordinate data is absent - for now, only LBLEV varies and the rest (blev/brlev/brsvd1 and bhlev/bhrlev/brsvd2) are all 0