send serialized books instead of book path
Merge branch 'master' into multidirs

Conflicts:
	src/org/geometerplus/android/fbreader/preferences/EditBookInfoActivity.java
Merge branch 'multidirs' into beta

Conflicts:
	src/org/geometerplus/android/fbreader/FBReader.java
	src/org/geometerplus/android/fbreader/library/BookInfoActivity.java