Ignore text nodes when parsing XMLAnnotation's value

This fixes an error parsing Modulo annotations
(e.g. FLIM-modulo-sample.ome.tiff) in Matlab.
merge develop -D org -I include -E exclude: PR 528 (Tile performance improvements for VMS and NDPI)
merge develop -D org -I include -E exclude: PR 836 (Update JPEGTurboServiceImpl.java)
merge develop -D org -I include -E exclude: PR 840 (SDT: read each data block into a separate series)
merge develop -D org -I include -E exclude: PR 852 (Version history for 4.4.10 (rebased onto dev_5_0) (rebased onto develop))
merge develop -D org -I include -E exclude: PR 853 (Ignore text nodes when parsing XMLAnnotation's value)