Implemented Pierre's workaround (1f8aba3) to java viewer.

We have lots of code that deals with Windows versions that we no
longer support anyway. Clean out all of this old cruft.

We don't have any meaningful code for the mirror driver, so
remove the confusing stub and interface for it.

The identifier is used to compute the registry path, and should
ideally be kept short and without spaces.

The argument named "desc" was not actually the description, but
rather the short "display name". Add handling for the actual
description to reduce confusion.

The check for visible drawables didn't account for compositing
which can place a window off-screen. Put all of these checks in
a common place and make sure it detects things properly.

These files are not Red Hat or Ubuntu specific, so install them
on all Unix systems where the viewer is installed.

Adds missing build dependencies and fixes java compile issues
caused by non-ascii characters in comments.

Adds missing build dependencies and fixes java compile issues
caused by non-ascii characters in comments.

Updating control file per suggestion in #258

[re #258] Add missing build-deps and allow deb to build on any arch

There are more platforms than x86_64 that need -fPIC, so include
it whenever possible.

Obsoleted by 7461517

Obsoleted by 7461517

The previous detection would fail if the socket closed before we
had time to inspect it, which got us stuck in a loop as we would
try (and fail) to do accept() on a non-listening socket.

The rest of the code assumes xauth is in PATH, so let's check for
that instead.

The previous detection would fail if the socket closed before we
had time to inspect it, which got us stuck in a loop as we would
try (and fail) to do accept() on a non-listening socket.

The rest of the code assumes xauth is in PATH, so let's check for
that instead.

Primary selection is inherently a X11 concept so there is no point
showing the settings related to it on other platforms.

Only C++11 allows omitting the class keyword, so include it so
the code compiles with older compilers.

Parsing a filter might be the first thing we do so we need to
make sure the socket subsystem is running so that we can look
up names.

This makes it easier to handle common exceptions. I was motivated
because the Mesa URL is currently broken and wasn't handled well.

Implementation mostly copied from here:
  http://stackoverflow.com/questions/22676/how-do-i-download-a-file-over-http-using-python

Old UTF-8 resulted in this error from GNU Emacs:
  Warning (mule): Invalid coding system `UTF-8' is specified
  for the current buffer/file by the :coding tag.
  It is highly recommended to fix it before writing to a file.