#72 C++ compilation problems due to C++11 features in the sources

[Martin Reinecke]

In release 3.30, some code inadvertently relies on compiler support for
the C++11 standard. If your compiler does not yet support this standard
and produces error messages when compiling hpxtest.cc and alice3.cc, you
can work around the problem by replacing these files with the following updated versions:

https://sourceforge.net/p/healpix/code/HEAD/tree/branches/branch_v330r807/src/cxx/Healpix_cxx/hpxtest.cc

and

https://sourceforge.net/p/healpix/code/HEAD/tree/branches/branch_v330r807/src/cxx/alice/alice3.cc

This problem will be fixed in any future 3.3x releases.
However, Healpix versions 3.4 and above will most likely require C++11 or C++14 language features.