Merge pull request #128 from GottfriedSp/master

Some corrections and a build script for documentations
Work on skews
Work on skew
Work on skew
Skew work
Note 'defines' parameter for use with scons
Skew work
When the bot is pre-heated, it's possible for the elapsed time to be 0 seconds when 1% is posted.  In that case, startingBuildTimeSeconds is always 0 and so no estimate of remaining time is ever generated.