Update gitignore

We have many  untracked files. They can be ignored because they are auto generated files.

```
% git status
On branch master
Your branch is up-to-date with 'origin/master'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)

	client/hatohol/hatohol_def.py
	client/static/js/hatohol_def.js
	compile
	config.h
	data/init.d/centos/hatohol.centos
	data/init.d/debian/hatohol.debian
	hatohol.spec
	server/hap/hatohol-arm-plugin-zabbix
	server/mlpl/mlpl.pc
	server/mlpl/test/loggerTestee
	server/mlpl/test/run-test.sh.log
	server/mlpl/test/run-test.sh.trs
	server/mlpl/test/test-suite.log
	server/src/hatohol
	server/src/hatohol-resident-yard
	server/test/ActionTp
	server/test/fixtures/FooTable.db
	server/test/fixtures/mkTestDB
	server/test/fixtures/testDatabase-hatohol.db
	server/test/hapi-test-plugin
	server/test/run-test.sh.log
	server/test/run-test.sh.trs
	server/test/test-suite.log
	server/test/zabbix-api-response-collector
	server/tools/hatohol-config-db-creator
	server/tools/hatohol-def-src-file-generator
	server/tools/hatohol/hatohol_def.py
	stamp-h1
	test-driver

nothing added to commit but untracked files present (use "git add" to track)
```