Replaced Uniform.getFrameNumber and Uniform.getTime with Uniform.getFrameState
Added czm_morphTime.  Remove primitive-specific morph times
Minor scene mode cleanup
Merge master to cv
DynamicPath cleanup

Backout workaround for #602 which is no longer needed because the initial problem was fixed with #725
Merge pull request #725 from AnalyticalGraphicsInc/cv

Columbus view cleanup