Remove commented methods from NewsDAO.java

Methods deleteAll and replaceAll are unused and commented away.
These should be removed.
Merge pull request #57 from dwarfcrank/dev

Remove commented and unused methods from NewsDAO.java
Merge branch 'master' of https://github.com/futurice/festapp-android
Merge branch 'force_reload' of https://github.com/ljleppan/festapp-android into force_reload
General structure for forced data reload. Does not work _yet_.