Minor changes

- use functions instead of lambda
- dont use color for non-terminal tty's
- add --temp argument for blendfile_pack

bam/__init__.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 import sys
-__version__ = "0.0.5.2"
+__version__ = "0.0.5.4"
 
 def main(argv=sys.argv):
     from .cli import main