yay, opengl renderer (revert if this sucks)
added a graceful-exit option
Merge branch 'dev' of https://github.com/fmsbeekmans/jest into origin-dev

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.