Add new LET IDF and Parameters file to Manitd

[Alex Buts]

LET configuration have changed for cycle 2015/1. These changes should be agreed with instrument scientist and placed in Mantid

[Alex Buts]

Re #11292 This should fix it

Changeset: 6df011e4fd90e7b1915721c4ba77be84c47cb1af

[Alex Buts]

ticket is validated as PR ​https://github.com/mantidproject/mantid/pull/369

[Alex Buts]

Re #11292 "fixing" failing system test for LET

and producing better diagnostics for the error, it was failing with.

Changeset: 211070a25c95e3d73fdd1c7ee6aeec4e60594bb3

[Andrei Savici]

Is ISIS_LETReduction.py supposed to be a systemtest? Then why have hardcoded paths to c or d drives? If not, why is it in systemtests?

[Alex Buts]

Re #11292 Fixing error with non-standard file extension not propa-

gating properly

Changeset: 870d5516391a5660f07bfee73fda453b9cd64531

[Alex Buts]

Re #11292 Merge branch 'master' into 11292_LET_cycle2015_1_changes

Conflicts:

Code/Mantid/Testing/SystemTests/tests/analysis/ISIS_LETReduction.py Code/Mantid/scripts/Inelastic/Direct/DirectEnergyConversion.py

Changeset: 4834942ae6f3b1bf2083237b54ab2c27ab5ddbdb

[Anders-Markvardsen]

Merge pull request #369 from mantidproject/11292_LET_cycle2015_1_changes

LET modifications for cycle 2015/1

Full changeset: ​1034da6bb4c4e9b46b005b5e640ab113f3db064f

[Nick Draper]

Somehow these slipped through without a resolution. Set to Fixed.

[Stuart Campbell]

This ticket has been transferred to github issue ​12131