Use new version of nosql.

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/sirupsen/logrus v1.4.2
 	github.com/smallstep/assert v0.0.0-20180720014142-de77670473b5
 	github.com/smallstep/cli v0.14.0-rc.1.0.20191211225301-a5e848783407
-	github.com/smallstep/nosql v0.1.1
+	github.com/smallstep/nosql v0.2.0
 	github.com/urfave/cli v1.20.1-0.20181029213200-b67dcf995b6a
 	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550
 	golang.org/x/net v0.0.0-20190620200207-3b0461eec859

go.sum

@@ -129,6 +129,8 @@ github.com/smallstep/nosql v0.1.1-0.20191009043502-4b26d8029e61 h1:XM3mkHNBc6bEQ
 github.com/smallstep/nosql v0.1.1-0.20191009043502-4b26d8029e61/go.mod h1:MFhYHIE/0V7OOHjYzjnWHqySJ40PVbwhjy24UBkJI2g=
 github.com/smallstep/nosql v0.1.1 h1:ijeE3CM00SddioodNl/LWRQINNNCK1dLUsjZDwpUbNg=
 github.com/smallstep/nosql v0.1.1/go.mod h1:qyxCqeyGwkuM6bfJSY3sg+aiXEiD0GbQOPzIF8/ZD8Q=
+github.com/smallstep/nosql v0.2.0 h1:IscXK9m9hRyl5GoYgn+Iml//5Bpad3LyIj6R0dZosKM=
+github.com/smallstep/nosql v0.2.0/go.mod h1:qyxCqeyGwkuM6bfJSY3sg+aiXEiD0GbQOPzIF8/ZD8Q=
 github.com/smallstep/truststore v0.9.3/go.mod h1:PRSkpRIhAYBK/KLWkHNgRdYgzWMEy45bN7PSJCfKKGE=
 github.com/smallstep/zcrypto v0.0.0-20191008000232-9fc4bea33f70/go.mod h1:8LA6x9T22WADMj89Ksf6DnOVCOJF3zLKUdSRAcZmW4U=
 github.com/smallstep/zcrypto v0.0.0-20191122194514-76530dff70e7/go.mod h1:8LA6x9T22WADMj89Ksf6DnOVCOJF3zLKUdSRAcZmW4U=