Added class TitleSort
Added class field mySortKey
Added copyright to class TitleSort
Added comparator
Corrected with last changes
A little bit of decoration
Traded places copyright/package info
Added field mySortKey
Added comparator for BookTree -- TitleSort
Added class field TitleSort
Update assets/resources/application/cs.xml

Updated Czech translation
Merge branch 'book-sort' of github.com:geometer/FBReaderJ into book-sort
Merge branch 'master' into book-sort
introduced new class Title
Deleted TitleSort.java
Added TitleComparator.java
Added TitleComparator.java
Deleted class field mySortKey, changed type of myTitle
Deleted class field mySortKey, changed type of myTitle
Deleted class field myComparator