tigefa4u projects Trac

PermissionPolicy: fixed the `Context.self_href` to work properly when `Context.version` is used.

Also introduced a few resource description related methods on `Context`:
- `name`, gives a non ambiguous name to the resource targeted by the context
- `summary`, gives a more detailed information about the targeted resource

PermissionPolicy: simplified the `Resource.version` specification.

Now, `None` is used to specify the latest version of a resource, in accordance to existing conventions for Wiki pages and the versioncontrol subsystem.

Also:
- the `__call__` method has been fixed to create Context instances of the appropriate subclass according to the given the `realm`.
- restored the doctests for the Context class.

PermissionPolicy: Simplified resource system. Renamed `IResourceMapper` to
`IContextProvider` to reflect its new purpose.

PermissionPolicy: also merged [4563] (blame in scoped repos fix)

PermissionPolicy: merged with trunk@... (blame branch integration -> addition of ''version'' information in the Context)

Fix for the blame feature in case a scoped repository is used. Thanks to Manuzhai for reporting the issue and suggesting a fix.

PermissionPolicy: init svnmerge properties for facilitating merges from trunk

Add Blame feature to TracBrowser by integrating the branch source:sandbox/blame@.... Closes #629.

Blame branch: merged [4540:4559/trunk], plus added a workaround for extraline generated by the highlighter (probably due to r4548)

Use Pygments' `__version__` information, if loaded from source and no pkginfo data can be found.