Adjust wrong #include of init_database.c
Clear maketree call and *.dic, chewing-definition.h migration from data/Makefile.am

Conflicts:
	data/Makefile.am
Change dictionary-reading (dict_cur_pos, dict_end_pos) to (tree_cur_pos, tree_end_pos).
Change GetPhraseFirst() to record index from tree file.

Conflicts:
	src/dict.c
Modify Str2Phrase() to new representation of data.

Conflicts:
	src/dict.c