Merge commit 'ba4e9689f5141275bc847153626df2b220481fcd' into develop

Changed main link so this can be hidden in the menu
Merge commit 'ec702cfca4e81a5cf4029d6c945089967b2536b1' into develop

Update languages/nl.lng
Merge commit '91fd806f356a5a660eb3043d46717ffa0ae19755' into develop

changed line 53 there was a dutch word instead of english
Merge commit '618e54379e32513a2393ffa5f3310644f1fb8342' into master

Don't know why but sometimes there are projects with a negative array index...
Merge commit '7151b3f9d958c639e7b3943607e7b3fced0f0838' into develop

node 'hours' overwrites action_admin() but ignores NF_NO_ADD - fixed!
Merge commit 'b38d80cf91ba7777a1e7c2406ef8bf0aaaef3e15' into develop

crm module should be optional
Update CHANGES and AUTHORS due merge of repository klaaspeter/achievo
Merge branch 'develop' into klaaspeter-achievo-cherry-picking

Conflicts:
	doc/CHANGES
Merge pull request #12 from PhrozenByte/klaaspeter-achievo-cherry-picking

Merge changes of repository klaaspeter/achievo