Improve Profile Handling

[Netroxen]

This implements the custom member functionality found in the portal_membership tool of the ZMI.

The sidebar now implements a sidebar.user_avatar('schema_field_name') to allow fields in a custom Content-Type to be used for the sidebar avatar image.

[coveralls]

Pull Request Test Coverage Report for Build 174

• 21 of 51 (41.18%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-3.08%) to 57.817%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/collective/sidebar/directives.py	8	15	53.33%
src/collective/sidebar/utils.py	3	11	27.27%
src/collective/sidebar/browser/sidebar.py	8	23	34.78%

Totals
Change from base Build 169:	-3.08%
Covered Lines:	196
Relevant Lines:	339

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 327

• 21 of 51 (41.18%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-7.2%) to 88.601%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/collective/sidebar/directives.py	8	15	53.33%
src/collective/sidebar/utils.py	3	11	27.27%
src/collective/sidebar/browser/sidebar.py	8	23	34.78%

Totals
Change from base Build 324:	-7.2%
Covered Lines:	342
Relevant Lines:	386

---

💛 - Coveralls

[Netroxen]

@sarn0ld is this something we would like to have in the next release..?

[sarn0ld]

@Netroxen I would like to have it in the next release and I can confirm that it works in one of our internal projects (actionbike, except for facebookusers...) . But these are not everyday-changes, they seriously need tests, before we can merge it.

[sarn0ld]

Looks good and works as far as I can see. But it seriously needs tests!