orbplus release notes

v1.0.5 to v1.0.6

1. Test and fix problems involving linux startup script and lib/defaults.linux. Currently the defaults for linux and mac are the same.

v1.0.4 to v1.0.5

1. Change default output directory to $HOME/orbplus.output/orbplus-DATE. It is annoying to have so many orbplus output directories in the $HOME directory.
2. Change default location of pymol to be /usr/local/bin/pymol.
3. Numerous updates to the documentation. The documentation is tailored the open/close problem and we will rectify this once we have included other examples (eg, binding affinity).