Add (lots) of documentation for various parts of the test suite in the
form of Python docstrings. Also, clean up some of the redundant code and
fix indentation issues.
Some command line switches are passed to Wget unconditionally. These
switches should exist in a single place instead of being redundantly
defined in each test file. We add the following two switches by default
here:
1. --debug: This causes wget to be most verbose and output a lot of
debugging information. Hence, if a test fails, the test log should
provide valuable information.
2. --no-config: Users may have their own wgetrc files on the system.
However, for the tests, we want Wget to run with vanilla settings.
Hence, disbale loading any config files.
This is a squashed commit of the following from parallel-wget:
ecd6977 Refactor mainly the test cases classes
d26c8eb Create package test for test case classes
507383d Move server classes to package server.protocol
195393b Create package conf where rules and hooks are put
42e482a Create package exc and move TestFailed to exc
82f44f3 Fix a typo in Test-Proto.py
31e5f33 From WgetTest.py move WgetFile to misc
422171d Create package misc, move ColourTerm.py to misc
