Fix all but one of the PEP-8 issues

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Rename some functions and variables

This is to make the refactoring a little smoother and easier to read.

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Don't pass apache's config to radosgw

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Optionally use civetweb instead of apache

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Don't run apache functions if not using apache

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Generate subtasks instead of copy/pasting them

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Merge pull request #241 from ceph/wip-7933

task.rgw: Enable use of built-in civetweb server instead of apache