FileHandleTest: remove trailing slash from /usr/lib/

This allows the test to match /usr/lib/ and /usr/lib64/, so that
necessary native libraries aren't detected as file handles that have
incorrectly been left open.
Split out main doc sections with bullets

We were already listing them as bullets, but then we also redundantly
linked to them in the introductory paragraph above as well.

Bulleted lists are often much easier to read and digest
(http://www.contentious.com/2004/09/17/bulleted-lists/), so let's just
stick to a single list with the description inline per bullet point.
Synchronize MATLAB page with LOCI content
Delegate non-Java code page to LOCI site

The article is a general one, and largely unspecific to Bio-Formats.
The most important Bio-Formats-specific point is the "recommended
solutions" linked at the top.
Simplify note about additional optional libraries

It is unnecessary repetition to mention that "beyond XYZ no additional
libraries are required" since they were just described the sentence
before. That language was really just a holdover from back before there
were any dependencies at all.
Remove language about Bio-Formats bugfix updates

In general, Bio-Formats is no longer released when bugs are fixed,
but rather according to the OMERO release schedule.
Clarify and fix Bio-Formats Fiji documentation

Explain that Fiji ships with the latest Bio-Formats stable release,
that you can enable daily builds, and link to the Fiji wiki page for
further details.
Remove link to ImgLib2 Fiji wiki page

The site imglib2.net redirects to that same page anyway.
And imglib2.net is a more future-proof URL in any case.
Use "See also" boxes where relevant
Rework out-of-date FARSIGHT documentation

The code formerly known as BF-ITK is now integrated directly into ITK,
and as such much of this information has been simplified. The
Bio-Formats ITK page has most of the informational meat; the FARSIGHT
page merely needs to mention that it uses ITK to harness Bio-Formats.
Use better and shorter Fiji wiki URLs

The "/wiki/index.php" is not needed.
Update Image5D link
Update ImgOpener link to current implementation
Add link to LOCI's "OSS in Science" article
merge dev_4_4 -D org -I include -E exclude: PR 622 (Upgrade SLF4J to 1.7.2 [dev_4_4])
merge dev_4_4 -D org -I include -E exclude: PR 653 (Make JDK 1.6 the minimum supported version (dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 654 (Synchronize docs with LOCI Bio-Formats content)
merge dev_4_4 -D org -I include -E exclude: PR 656 (Update FileHandleTest to skip /usr/lib64/*)
merge dev_4_4 -D org -I include -E exclude: PR 659 (Split out main doc sections with bullets)