Packaging updates

I've added dh-autoreconf as a build depend since without it nothing was
being built and the resulting deb package was empty.

 - add dh-autoreconf to Build-Depends
 - add --with autoreconf to debian/rules
 - Build-Depends of version >= 2.24.2 for libglib2.0-dev
Update changelog
Merge pull request #6 from davewongillies/master

Packaging updates