file separators need to be correct across platforms

git-svn-id: svn://svn.icculus.org/fs2open@10589 387891d4-d844-0410-90c0-e4c51a9137d3
break down the process running procedure into multiple methods

git-svn-id: svn://svn.icculus.org/fs2open@10590 387891d4-d844-0410-90c0-e4c51a9137d3
allow getting of the InstallerNode

git-svn-id: svn://svn.icculus.org/fs2open@10591 387891d4-d844-0410-90c0-e4c51a9137d3
Fix Mantis Issue 3035: AddressSanitizer: double-free in interp_configure_vertex_buffers() of memory contained in buffer_data object. Add a copy-constructor and copy-assignment operator which are required as we manage our own memory in buffer_data

git-svn-id: svn://svn.icculus.org/fs2open@10592 387891d4-d844-0410-90c0-e4c51a9137d3