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 672 (AVI: fix array index calculation for tile reading (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 673 (Make configuration file suffix configurable)
merge dev_4_4 -D org -I include -E exclude: PR 680 (CellWorx: do not assume that the first well/field file exists)
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