[gt-users] get feature by ID

[Gordon Gremme]

>> on a sort of related note, one feature that would be nice is something
>> to remove this boilerplate:
>>
>> genome_stream = FeatureStream(genome_stream, feature_index)
>> feature = genome_stream.next_tree()
>> while feature:
>>     feature = genome_stream.next_tree()
>>
>> maybe with something like:
>>
>> FeatureStream(genome_stream, feature_index).iterate_all()
>>
>> that doesnt apply to the problem of make a name => feature hash, but
>> is nice for filling a feature_index and doing an intron_stream.
>
> This is a nice idea and should be implementable without many problems as
> a general method in the GenomeStream class.

Yes, this would also simplify all the while loops which can be found
in the tools.
I'll implement this shortly on the C-side.

Gordon