Added unsupported message to Readme

Merge pull request #53 from samueljoos/master

fix endless file selecting loop issue #47

version bump in manifest, re-compiles under Release config

Updated with latest instructions

updated binaries

now sets absolute frame

symlinks: remove framework symlink

updated flexBox example

update for Sketch 3.8

load flexBox

still trying to find the best way to center paths... I've decided that crowd sourcing markov chains are the way to go

convert to square pixels early to avoid issues

rotation and centering

cleaned up code