Add testing mention of CentOS, windows.
Skipping some tests on versions 1.3 and 1.4
Minor doc mods.
For whatever stupid reason, np.log2(x) cannot be relied upon to be an
integer when x is a power of 2 ON WIN32!!! All hail win32!
Better error message if array-style slice other than [:]
Skipping a test that segfaults only on 1.5.0 and 2.0.0. The test was
test_NR_DEC_issue188_beach_64bitsbox_jp2_41_decode. It was not introduced
until the 2.1.x series and the fix was backported to 2.0.1.
glymur.test.test_jp2k.TestJp2k.test_no_cxform_pclr_jpx was failing on
1.5.2 only. It's a pretty obscure test, so just skipping it on that
release.
Some tests for warnings are being skipped.
