A git repository for insight

Hi friends,

I've set up a git repository for insight:
https://github.com/monnerat/insight
=20
It currently supports:
- Upgradable tcl, tk, itcl, itk, binutils-gdb via git submodules.
- Use of the latest (i.e.: today) submodules versions.
- Bundled iwidgets snapshot (20140625).
- gdb in synchronous mode only.
- libgui's tkTable working even in 64-bit mode.
- Compiles and runs on Linux (other platforms not tested).
- Submodule fixes via embedded patches.
- A freedesktop launcher file.
- Production of complete source tarballs.

The old CVS log has been dropped: however the ChangeLog files have been
retained.

It's "experimental", and is intended to supply some "reference"
repository while the official sourceware repository is not populated.

Comments and pull requests are welcome :-)

Patrick