Added missing exports to chart-simple
Updated lens constrain to include lens 4.0
Revert "Updated lens constrain to include lens 4.0"

This reverts commit 2ee07b29d549c605e245a08379fa0890dbadf368.

We can't upgrade lens until the diagrams library does so.
BUGFIX: crash rendering a StackedLayoutLR with legends
Merge pull request #23 from DougBurke/patch

BUGFIX: crash rendering a StackedLayoutLR with legends
Added tests of StackedLayoutLR items for changeset 4affe87847245f05d60e0ad8f433fa9b85ffb2f3

This commit does not add PNG/SVG versions of the new tests (test11c/d/e) to tests-reference/
Chart and Chart-diagrams build fine with lens-4.0.*
update Chart-diagram to work with diagrams-lib-1.1
BUGFIX: VTA_BaseLine was not supported by rlabel.

Also added a number of test cases (misc1b to misc1g) which show that rotated labels with VTA_BaseLine are not displayed correctly. No reference files for these tests have been added.
Merge pull request #25 from byorgey/master

Updates to allow Chart-diagrams to build with latest diagrams release
Merge pull request #24 from DougBurke/patch

Added tests of StackedLayoutLR items (pull request #23)
Additional version constraints for package consistency
The test reference images are out of date, and depend on external
libraries (eg cairo and diagrams) for pixel accuracy. So, I've
removed them - the existing harnesses can be used to generate a
set of test images as required.
Fix behavior of rlabel with VTA_BaseLine.

This fix is most noticeable with rotated labels.
Add missing exports.

This update adds some missing exports from modules, removes un-used module imports, fixes one partial function, and minor documentation tweaks.
Add missing imports.

Adding to changeset 65b5308591dc0a837103b57651af4860c0d235db
Code cleanup: -Wall/hlint

Changes include: use -Wall for building; cleanup to avoid -Wall warnings; apply hlint suggestions; more use of Control.Lens
Merge remote-tracking branch 'origin/master' into patch
Avoid warnings with lens-4.0

This change will cause warnings when compiled with lens<4; I did not feel it was worthwhile using CPP to avoid this
Build with lens<4.

This fixes up changeset 7f3ed3166913133cb0f97d89356b4ff7ee8531fb with a modicum of ugliness.