Merge pull request #8 from automata/master

Add Insta filters
runtime: Update to latest
Run runtime tests with runtime/ as CWD
Revert "Run runtime tests with runtime/ as CWD"

This reverts commit fd30544816dcd31c56be25e65acf1e07cc895048.
Explicitly require noflo-image > 0.0.19
Make: Add forwarding to runtime for "component" target
runtime: Update with path fixes, should fix tests
Makefile: Allow to run just server tests
runtime: Update with critical warning fix
Tests: Add more assert in server version
Tests: Skip /version checks
graphs: Add general insta
noflo-canvas: Implement loading of input into canvas

Previously the canvas port could only be used for purely generative,
which caused non-generative filters to reimplement image load handling,
with incompatible parameter names.
The insta_* filters still need to be updated to reflect this
graphs/insta_1977: Use input data from 'canvas' port

The "insta" graph was a bit too generic, removed.
graphs/insta_1977: Fix name property

Not sure if it matters for anything, but...
noflo-canvas: Add support for resizing
Tests: Add case for resizing noflo-canvas based filter
noflo-canvas: Fix formatting in debug message
Tests: Attempt to update insta_1977_resized reference

Somehow results are different on Travis CI...
Tests: Support skipping annotation in graphtests.yml

Use _skip: true for the testcase