dbschema: fix tmp file usage in makefile
dbtext: fix newline typo
dbtext: generate blob instead of string for binary columns
dialog: dialog variables should be blob
dialog: update dialog dbschema
dialog: hexa representation for dlg_list_ctx binary values
Merge branch 'dialog-vars-fix'

Conflicts:
	scripts/db_berkeley/opensips/version
	scripts/dbtext/opensips/version