"all" account and "all" portfolio should not be editable

[wsteitz]

the edit and delete button should not be active + right click menu should not allow edit and remove

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Imported from Launchpad using lp2gh.

• date created: 2011-10-25T20:27:03Z
• owner: wolfer7
• assignee: wolfer7
• the launchpad url was https://bugs.launchpad.net/bugs/881662