fix minor grammar issues and broken header link in README.md
Merge pull request #92 from bruston/patch-1

fix minor grammar issues and broken header link in README.md
Add method to close gorm db connection
When multiple databases have the same table name and column names, automigrate doesn't work
remove package dialect for easier contribution
Merge branch 'sunfmin-master'

Conflicts:
	main.go
Add method HasTable, HasColumn to dialect
Include table_schema when query from INFORMATION_SCHEMA for mysql
Fix invalid SQL issue
Merge pull request #2 from jinzhu/master

sync with master