Updates to TeX Gyre Adventor and Pagella in version 2.501:
* substantial extension of the repertoires by geometric, math and
technical symbols, in OTF, files stylistic feature ss10 (backward
compatibility with old math symbols) added, marks (anchors) implemented
* only one aggregate map (for each) is included for all encodings
* the contents of the source/fonts/tex-gyre/ directory changed; most
importantly, it contains source *.sfd files
* the relevant LaTeX files haven't been changed, they just got a new time
stamp
