Merge pull request #138 from ly29/master

show len level 0 in input and output.
Merge pull request #139 from ly29/master

Simple Noise node
Merge pull request #141 from ly29/master

Noise Node UI fixes
think point surface function PSF
with seed and quantization
operator compaction.

preserves functionality, reduces visual clutter in code
Update node_Script.py

combined if-statements
Merge pull request #142 from ly29/master

Vector values in List Input
now with user defined buttons, see extended descr

https://github.com/nortikin/sverchok/issues/85#issuecomment-42199750
polish. update_py neater
each user added button on new row.
preparation for index+bg colors
added color hooks
some order
manual
Update Scripts_generator.md
Update todo.md
Rename lists_join wiki.md to lists_join wiki
Create Introduction_to_Geometry.md

I will finish this soon.
Update node_IDXview.py