TS2 development started again

After 5 years of inactivity, development of ts2 started again!
For this occasion, development site moved to GitHub (check https://github.com/npiganeau/ts2) and the software has been ported from C++ to Python in the hope to get faster coding.
Homepage and release files remain on sourceforge.
The next release (v0.3) will focus on adding a simulation editor to ts2 so that users can create their own simulations.