Merge pull request #1872 from akeneo/PIM-3473

PIM-3473: Fix date picker year range selection over next year
PIM-3475: Fix attribute options sort order in import/export
PIM-3475: Fix export behat and polish
Preparing version 1.2.15
Improve exception messages for updaters
PIM-3475: Add phpspec to the new class
Merge pull request #1877 from akeneo/PIM-3475

PIM-3475: Fix attribute options sort order in import/export
Merge branch 'PIM-3475' into PIM-3475-merge

Conflicts:
	features/export/export_options.feature
	spec/Pim/Bundle/TransformBundle/Normalizer/Flat/AttributeOptionNormalizerSpec.php
	spec/Pim/Bundle/TransformBundle/Normalizer/Structured/AttributeOptionNormalizerSpec.php
	src/Pim/Bundle/InstallerBundle/Resources/fixtures/icecat_demo/attribute_options.yml
	src/Pim/Bundle/InstallerBundle/Resources/fixtures/icecat_demo_dev/attribute_options.yml
	src/Pim/Bundle/TransformBundle/Normalizer/Structured/AttributeOptionNormalizer.php
Merge pull request #1880 from akeneo/improve-updater-exceptions

Improve exception messages for updaters
PIM-3475 : ensure that the query is well built in specs
Merge pull request #1885 from akeneo/PIM-3475-merge

PIM-3475: Fix attribute options sort order in import/export
PIM-2613 : fix cs
PIM-3520: Fix multiselect sorter
PIM-3447 Enforce max database length limit on text attribute values
PIM-3447 Update changelog
Merge pull request #1890 from akeneo/PIM-3447

PIM-3447 Enforce max database length limit on text attribute values
Merge pull request #1889 from akeneo/PIM-3520

PIM-3520: Fix multiselect sorter
PIM-3471 : Add an error log when the max number of indexes is reached
for mongo product collection
PIM-3369: import products - couple channel/locale doesn't exist - the import succeeds
Merge pull request #1894 from akeneo/PIM-3471-mongo-indexes

PIM-3471 : add a error log when we reach the max indexes of a mongo collection