Squashed 'cstud/' changes from 37339af..ec0b8d4

ec0b8d4 Extracted connection to simple_connect

git-subtree-dir: cstud
git-subtree-split: ec0b8d4ee65c445ed9a7664834a7ba8807d5fb85
Merge commit 'b8e523ec28f6a28ae847f120f82c6e617dfcbe96'
Changing to new cstud client