Let StorageDoubleMap use borrowed key types (#1804)

* Let StorageDoubleMap use borrowed key types

* Bump impl version
This commit is contained in:
Jordan Beauchamp authored and Gav Wood committed 2019-02-21 19:26:31 +01:00
1 parent 4bf4b37185
commit f5ab24804f
7 files changed
+64 -21

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