Code now resides in common.serialization in the form
of two new functions: yaml_load and yaml_dump.
Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>
Update use of safe_load and safe_dump to load and dump using
the CSafeLoader with SafeLoader as a fallback.
Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>