Remove hashbang (#!) at beginning of python modules

Change-Id: I8f138f82952938fcfaa0e9fc150cb97471febb31
Add the driver name to get stats log output

When the manager call tries to update the driver
stats, it checks to ensure the driver is initialized.
When the driver hasn't been initialized, it logs
a warning without the driver name.  This is confusing
for multiple backends.   This patch adds the driver
name, version and the config group name, to the log output,
so the admin can see which driver is failing.

Change-Id: I82e8aa969e7baa55db9c8dddc1c08db2a1a41091
Closes-Bug: #1259279
Merge "Add the driver name to get stats log output"
Merge remote-tracking branch 'origin/master' into jiocloud_devmaster