media library: sort track numbers as integers, not strings
tree17103e4e3c6ea680841f4ac2460bdae93ea4b417
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-rw-r--r-- 18011 COPYING
-rw-r--r-- 6970 INSTALL
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-rw-r--r-- 18294 NEWS
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-rw-r--r-- 12419 configure.ac
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