Partial fix for AWC-999: Content upload guesses character encoding and offers the user the chance to change it.

TODO: Fix the "Modify Content Properties" to include the encoding as a changeable option.

Modified other entry points of content into the system.  All calls to ContentWriter.setEncoding("UTF-8") need some serious examination.
It is no longer necessary to assume anything about the encoding.  The worst case scenario is that we guess the encoding from the stream
without giving the user the chance to change it.  This works for most non-interactive scenarios like CIFS, WebDAV and FTP, now.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6113 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

config/alfresco/messages/webclient.properties

@@ -232,6 +232,7 @@ other_action=Run Action
 information=Information
 move=Move
 type=Type
+encoding=Encoding
 aspect=Aspect
 workflow=Workflow
 workflows=Workflows
@@ -1646,6 +1647,7 @@ error_save_search=Failed to save search due to error: {0}
 error_restore_search=Failed to restore saved search due to error: {0}
 error_shortcut_permissions=Unable to navigate to the item as it cannot be read by this user. Another user may have modified the permission.
 error_association=Failed to find association definition for association \"{0}\".
+error_charset_null=Null characterset value
 
 # Confirmations
 return_to_application=Return to application