Added class TitleSort
Added class field mySortKey
Added copyright to class TitleSort
code cleanup (synchronization with C++ version)
since 1.7.3 we will not use proguard for apk obfuscation
VERSION => 1.7.3
no force start for library service
Added comparator
Corrected with last changes
A little bit of decoration
Traded places copyright/package info
Merge branch 'book-sort' of github.com:geometer/FBReaderJ into book-sort
Merge branch 'master' into book-sort