Change str.format() to formatted string literals.
It should be a little faster and easier to read.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
*opencas.py*: changed result class to contain text values instead of bytes,
translated chache configuring methods to py3,
*init script*: changed regex input on raw string to work in py3.
Signed-off-by: Slawomir_Jankowski <slawomir.jankowski@intel.com>
