disabled lacing on Repeat node.

fix for #1294
add sample files for brute forcing parameters and rendering, changed package file to include needed custom nodes, added weather data file for this sample to parse.
updated python scripts path's to include standard library
changed clamp values for image so images were not completely dark.
added sample 5 test that loads up custom nodes and asserts that we have the correct family references for the family selection node, we can't run this graph as a test since it uses python and rendering framework yet.
Merge pull request #1361 from holyjewsus/Sample_Post_5

Sample post 5