deps: update database dependency

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/RTradeLtd/cmd/v2 v2.1.0
 	github.com/RTradeLtd/config/v2 v2.1.5
 	github.com/RTradeLtd/crypto/v2 v2.1.1
-	github.com/RTradeLtd/database/v2 v2.6.0-rc1
+	github.com/RTradeLtd/database/v2 v2.6.0
 	github.com/RTradeLtd/entropy-mnemonics v0.0.0-20170316012907-7b01a644a636
 	github.com/RTradeLtd/go-ipfs-api v0.0.0-20190522213636-8e3700e602fd
 	github.com/RTradeLtd/grpc v0.0.0-20190528193535-5184ecc77228

go.sum

@@ -43,10 +43,8 @@ github.com/RTradeLtd/crypto v2.0.0+incompatible h1:3+UEo0upD0p3A+7yLJ14UJpT6aZEh
 github.com/RTradeLtd/crypto v2.0.0+incompatible/go.mod h1:xhKwg748pxs2as6Ts65TiBBFrYzntioTqBIZEa1BUio=
 github.com/RTradeLtd/crypto/v2 v2.1.1 h1:P59zYkkNkl6K1KiTRvW52AYwLvwmtzuzZ9+AjLWmKsU=
 github.com/RTradeLtd/crypto/v2 v2.1.1/go.mod h1:saIQ67Btn4JWsOdzjn9U6Dl+aZlg+YKgg4RsQKXxjf4=
-github.com/RTradeLtd/database/v2 v2.5.0 h1:XpMfvBFT4L9wACXS1AMrmKHDbyFkA7m6QqP+UB9FCwk=
-github.com/RTradeLtd/database/v2 v2.5.0/go.mod h1:7t4vOzLgmvIz9qnZC0UY0cwdbpkVIhE6I9BaCKV4/us=
-github.com/RTradeLtd/database/v2 v2.6.0-rc1 h1:eQZl9HCyyaRz4QBB8VzZs5vCoh+m7/Bny4DI33Ce60Y=
-github.com/RTradeLtd/database/v2 v2.6.0-rc1/go.mod h1:7t4vOzLgmvIz9qnZC0UY0cwdbpkVIhE6I9BaCKV4/us=
+github.com/RTradeLtd/database/v2 v2.6.0 h1:NhVxzQaC3LxExql0Np0gLxFD6lEs0bovz0mfP+dH1Cc=
+github.com/RTradeLtd/database/v2 v2.6.0/go.mod h1:7t4vOzLgmvIz9qnZC0UY0cwdbpkVIhE6I9BaCKV4/us=
 github.com/RTradeLtd/entropy-mnemonics v0.0.0-20170316012907-7b01a644a636 h1:i/+1LBA+YMfD1m9UnQP52A7S6y2U3C0xpMBehPkDRug=
 github.com/RTradeLtd/entropy-mnemonics v0.0.0-20170316012907-7b01a644a636/go.mod h1:zpzHNRdCMCG9PM9QO5jVSldXCRMJ7lY42yJ5TEe//7M=
 github.com/RTradeLtd/go-ipfs-api v0.0.0-20190308091756-8b7099fd5e21 h1:AHtzjhhX63ayVKzYZbNv+LL7sHieM6IKRSa08QQSz60=