#59 static member variables, Bug in gcc on AIX

[Gabriel Kalkuhl]

There is a bug in gcc (up to version 3.1) on IBM AIX
machines.
This bug prevents static class members in SOAPEnc,
SOANEnv, XMLSchema2001 and XMLSchema1999 from
beeing constructed.
The constructor of SOAPQName will not be called, so
all tags will be empty.
For my implementation I deleted all these classes and
created defines for the tag-names, i.e.
#define SOAPENC_root SOAPQName("root",
SOAP_ENC)
This works fine for me.

I don't submit any patches because I think a workaround
for this bug will result in some basic changes of
EasySoap and should be done by the "brains" of this
project.