BF: Mouse component should not store list of vals if only storing 'on click'
Merge pull request #346 from jeremygray/master

RatingScale doc-strings, 'slider' visual marker
DOCS: updated credits and also ioLab_bbox demo (thanks Jonathan Roberts)
BF: see description please

- changed iohub_keyboard and iohub_mouse basic demo's to have a time out
of 15 sec of no event activity. Added extra text indicating what to do
and how to exit each as well.

- Added note to custom install guide re: gevent 1.0 + required.

- Added getHubServerConfig() method to ioHub connection

- Optimized device event listener _handleEvent() code.

- Fixed support for ESC out of calibration routine for Tobii eye
tracker.

- Windows OS: Fixed issue with mouse events not being allowed outside of
psychopy full screen window even when this constraint was not specified
in user script.

- Removed extra '\\n\\r' from end of all iobub msg requests and
responses. No longer needed since msgpack is sole encoding/compression
source.

- Added forced greenlet yield to next greenlet even if current greenlet
is polled and poll duration >= polling interval. Will make no difference
on fast computers but may make iohub Server more responsive on slower
computers.

- Added logic in variableProvider class which determines longest string
in all possible values for a string condition variable and uses that as
the max str length for the trial condition table in the ioDataStore hdf5
file.
ENH: EventPublisher and RemoteEventSubscriber

- Added EventPublisher and RemoteEventSubscriber device types to
psychopy.iohub.devices.network.
- Added simple localhost example using both devices to
psychopy.demos.coder.iohub_extended: pub_sub_device demo folder.
Merge pull request #347 from isolver/master

BF: see description please
Merge branch 'master' of github.com:psychopy/psychopy
BF: Mouse component should not store list of vals if only one will be collected
BF: very minor buglet in Grating Component that had no detectable effect on anything (?)
ENH: Added Polygon (ie shape) Component to Builder
DOCS: minor addition to doc for Polygon Component
BF: fix to handling of greyscale images being presented in ImageStim

these were not being identified correctly as needing conversion to RGB images
and rendered very badly
Merge branch 'master' of github.com:psychopy/psychopy
BF: Minor improvement to error message when a numeric color is given but colorspace is 'named'
Catch ValueError that (sometimes?) occurs when pressing a special key
Do not assume that target streams can be flushed.
- This allows standard output to be rerouted to objects without a `flush()` method.
Merge pull request #349 from smathot/master

Do not except on special keys (such as 'volume up') and do not assume `.flush()` methods on standard output.
Merge pull request #348 from jeremygray/master

flac path as a pref, better doc about downloading flac
changelogs