fixed users sorting in admin pannel

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branch : beta
added missing page_nav on forks page

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branch : beta
unified flash msg tests

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branch : beta
 recursive forks detach
 - added API attrs for option to delete or detach forks
 - deleting repos with attached forks raises an special Exception

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branch : beta
added new fixture classes
and detaching/deleting forks
tests

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branch : beta
fixed nose parametrized when used on objects

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branch : beta
- age tests cannot be dynamic, there are cases when age calculation
doesn't work
- use parametrized to test age

--HG--
branch : beta