Update batik to 1.8-dev (see #11438).

The batik JAR has been built from
http://svn.apache.org/repos/asf/xmlgraphics/batik/trunk
r1522564. The JDK version was:
java version "1.6.0_51"
Java(TM) SE Runtime Environment (build 1.6.0_51-b11-457-11M4509)
Java HotSpot(TM) 64-Bit Server VM (build 20.51-b01-457, mixed mode)
Add unit test for SVGRasterizer.java.
Correct missing "g" in SVGRasterizerTest.java.
adding delay before positioning tiles in the viewer, see #6850

this will prevent from loading tiles when user triggered another action
for example: if user zooms using mouse-wheel it will load only
tiles from the final level rather then all levels
adding delay value to the vieport
fixing delay param in bird eye, close #6850
Remove failing admin test.

testThumbnail has been removed as not only was it failing but it
looks irrelevant to the admin tests as it makes no use of the
admin service.
Correcting arguments in two calls.

However, this set of tests is identical to the equivalent OmeroJava
test file and so is an easy candidate for removal if tests are moved
to a single language.
Change assert function and use read-only group.

Firstly for the test to make sense the group should be read-only.
(If the group is private the test rightly fails and so could itself be a test.)
The inner assert method needs the start and end times for the filter.
Finally the second call still needs the user and group ids.
Comment added to failing test.

Will this issue be addressed? Is this test still valid?
Fix imports of Glacier2.
Changed exception on one test, added another and added comments.

One commented test is performance related and may point to
the original ticket being re-assessed or the test condition
being changed. Other comments relate to tickets which have been raised.
Create an image that can be imported successfully.

The original 1x1 png was failing - issue passed on to Melissa - an 8x8 png
fixes this test for the purpose for which it was intended. It may be better
to move to mock images.
Fix some tests and added a new one.

One test was deleting all scripts as a side-effect. This test has been
disabled and a ne test created with an accompanying ticket.
Rename overridden test.
Increase image size.

The test passes witrh an increased image size. As such this test isn't
concerned with the image size and a small image is used for convenience
only. However, if the image size is small than 3x3 then the method
call to getThumbnailByLongestSideSet() in library.createImage() fails
to return a thumbnail ID. This may be a bug in the ThumbnailService or
a limitation.
Starting to separate unittest specifics from test helpers.
First gatewaytest pytest attempt
moving test/manual to prevent py.test picking them up
adding pytest command to setup.py