ICS writer: fix channel count correction
Add slf4j-log4j to the test classpaths

This allows the tests to pass without requiring slf4j-log4j across the
board.
supported-formats: sort ratings columns properly

This necessitated the addition of alt tags on the ratings images
(unfortunately, reStructured text does not support title tags),
as well as a hack to sorttable.js to respect them.
Metamorph: fix erroneous channel counts

This is what edfc130ef90eb70cb1ad54a9e8450fcd7a84fbec should have done
in the first place.
Fix slf4j-log4j artifact ID
Fix POMs to include slf4j-log4j and log4j as test dependencies
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 379 (Fix source code links moved to the scifio-tools foder)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 381 (Add slf4j-log4j dependency in the test-suite component)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 383 (Make format tables sortable)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 385 (ICS writer: fix channel count correction)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 387 (Metamorph: fix erroneous channel counts)