优化系统配置

1、打开/opt/alfresco-community/tomcat/shared/classes/alfresco-global.properties，增加以下配置项：

### cache settings
#cache.userToAuthorityTransactionalCache.maxItems=200

### Disabling Alfresco features
activities.feed.notifier.enabled=false

### other settings
system.content.maximumFileSizeLimit=300000000
system.webdav.activities.enabled=true

# Activity feed max size and max age (eg. 44640 mins = 31 days) 
activities.feed.max.size=1000
activities.feed.max.age.mins=44640

### Download size limit
download.maxContentSize=-1

### Audit settings
audit.enabled=true
audit.alfresco-access.enabled=true

2、复制alfresco-audit-login.xml到/opt/alfresco-community/tomcat/shared/classes/alfresco/extension/audit