Bump version number to 0.1
Bump version number to 0.1

This bumps the version number to 0.1 marking the initial
stable release of the chemkit library.

Many thanks to all who contributed!

Change-Id: Ic7a8038399ffe43462df66c0e05d61f6dfb20af5

kylelutz/chemkit,kylelutz/chemkit,kylelutz/chemkit,kylelutz/chemkit