Merge pull request silverstripe#232 from bigfork/silent-exceptions

Fix issue where exceptions triggered by extensions could be silently swallowed

Add missing import statement

Merge pull request silverstripe#230 from TheBnl/patch-1

Fix error var $e is not defined

Merge pull request silverstripe#229 from bigfork/226-logging-options

NEW: Allow logging exceptions separately to non-fatal errors (fixes silverstripe#226)

Merge pull request silverstripe#227 from mlewis-everley/mle-sagepayup…

…date

Update SagePay inline with Omnipay 3

Merge pull request silverstripe#210 from scott1702/fix/void-fails

Merged silverstripe#210

Update README to indicate correct Omnipay version

ENH: Make payment identifier length configurable - globally / per gat…

…eway (silverstripe#203)

* Fix payment Identifier collision check and add test
* Make payment identifier length configurable
* Add unique index to Identifier column

Merge pull request silverstripe#198 from silverstripe/wilr-patch-1

Merged silverstripe#198

allow false for `is_offsite` param. (silverstripe#193)

* allow false for `is_offsite` param.
* Fix unit-tests.