added errorbars.

added errorbars to radius, metallicity, mass, period, semimajor axis, eccentricity, temperature, and added age.
radius source: http://iopscience.iop.org/0004-637X/701/1/154
metallicity: http://iopscience.iop.org/0004-637X/654/1/625
mass: http://iopscience.iop.org/0004-637X/654/1/625
period: http://iopscience.iop.org/0004-637X/654/1/625
semimajor axis: http://iopscience.iop.org/0004-637X/654/1/625
eccentricity:http://iopscience.iop.org/0004-637X/654/1/625
temperature: http://iopscience.iop.org/0004-637X/654/1/625
age:http://arxiv.org/abs/astro-ph/9803219