Added CyberShake database

New database of CyberShake ground motions added to the available databases

Minor bug fixes and updates to v2.0

A few bug fixes to the v2.0 code

Improved function release

Dramatically revised code relative to the 2011 release. Version 2.0 is documented in the following paper:

Baker, J. W., and Lee, C. (2016). “An Improved Algorithm for Selecting Ground Motions to Match a Conditional Spectrum.” Journal of Earthquake Engineering, (in review).