Merge pull request #6 from houqp/master

update gitignore
update application name in customupdate target
Merge pull request #7 from houqp/make-fix

update application name in customupdate target
define KOR_BASE at the top of Makefile
Merge branch 'master' of github.com:koreader/koreader

Conflicts:
	Makefile
Merge pull request #8 from houqp/master

cosmetic changes to makefile