Delete VertextoActiveGroup_Add&Rem.py
Delete cursor.py
Delete Image_by_Name.py
Delete Rigidbody_by_(ID).py
Delete Mix_Vectors_by_Mask.py
Delete switch_node.py
Delete switch_node-simple.py
Create select_vertex_by_index.py
Delete gravity.py
Merge pull request #371 from Kosvor/master

Many of them are unneeded today.