Update xorm and dependencies vendor for feature to dump to other database (#565)

* update xorm and dependencies vendor for feature to dump to other database

* fix golint

vendor/github.com/go-xorm/core/README.md

@@ -1,5 +1,7 @@
 Core is a lightweight wrapper of sql.DB.
 
+[![CircleCI](https://circleci.com/gh/go-xorm/core/tree/master.svg?style=svg)](https://circleci.com/gh/go-xorm/core/tree/master)
+
 # Open
 ```Go
 db, _ := core.Open(db, connstr)

vendor/github.com/go-xorm/core/circle.yml

@@ -0,0 +1,14 @@
+dependencies:
+  override:
+    # './...' is a relative pattern which means all subdirectories
+    - go get -t -d -v ./...
+    - go build -v
+
+database:
+  override:
+    - mysql -u root -e "CREATE DATABASE core_test DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci"
+    
+test:
+  override:
+    # './...' is a relative pattern which means all subdirectories
+    - go test -v -race

vendor/github.com/go-xorm/core/dialect.go

@@ -287,16 +287,21 @@ func (b *Base) LogSQL(sql string, args []interface{}) {
 }
 
 var (
-	dialects = map[DbType]func() Dialect{}
+	dialects = map[string]func() Dialect{}
 )
 
+// RegisterDialect register database dialect
 func RegisterDialect(dbName DbType, dialectFunc func() Dialect) {
 	if dialectFunc == nil {
 		panic("core: Register dialect is nil")
 	}
-	dialects[dbName] = dialectFunc // !nashtsai! allow override dialect
+	dialects[strings.ToLower(string(dbName))] = dialectFunc // !nashtsai! allow override dialect
 }
 
+// QueryDialect query if registed database dialect
 func QueryDialect(dbName DbType) Dialect {
-	return dialects[dbName]()
+	if d, ok := dialects[strings.ToLower(string(dbName))]; ok {
+		return d()
+	}
+	return nil
 }

vendor/github.com/go-xorm/core/type.go

@@ -54,7 +54,7 @@ func (s *SQLType) IsNumeric() bool {
 }
 
 func (s *SQLType) IsJson() bool {
-	return s.Name == Json
+	return s.Name == Json || s.Name == Jsonb
 }
 
 var (