ITC18: Fix erroneous string comparison.
ITC18: Fix erroneous string comparison.

It was probably working, but if so only incidentally because of compiler
specifics (using a single instance of equal constant strings) and
std::string implementation details (returning the c_str() from which it
was constructed).

I suspect the real intension was to use g_protocol_file_available, which
is defined but never used. I'm leaving this unfixed for now.

git-svn-id: 03a8048b5ee8463be5048a3801110fb50f378627@10929 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd

kmdouglass/Micro-Manager,kmdouglass/Micro-Manager