Vidalia ignores parameters and values that are separated by an equal sign.
(ie: Vidalia --datadir=data --logfile=log)
Attached patch updates parseArguments() to support keys and values
separated by equal sign.
Vidalia does not reject parameters that should include a value.
(ie: Vidalia --datadir --logfile)
Attached patch calls argNeedsValue() from validateArguments() to determine
if value is required. Vidalia notifies user if required parameter value is
missing.
NOTE: validateArguments() was static, so could not call argNeedsValue().
No longer static. If function needs to be static, could pass an instance
of Vidalia as a function parameter instead.