Renamed arrays folder/ns to arr

In general, I have the convention of not using plural nouns for
namespaces because it implies that the folder contains a collection of X
where really, what I intend is that the things in the folder pertain to
X. This would suggest that the folder ought to be named array but alas
that is a reserved word in php. So, the folder/ns was named arr.
Renamed streams folder/ns to stream

In general, I have the convention of not using plural nouns for
namespaces because it implies that the folder contains a collection of X
where really, what I intend is that the things in the folder pertain to
X.
Renamed exceptions folder/ns to exc

In general, I have the convention of not using plural nouns for
namespaces because it implies that the folder contains a collection of X
where really, what I intend is that the things in the folder pertain to
X. "exception" was not used because that is a reserved word in php.
Renamed utils folder/ns to util

In general, I have the convention of not using plural nouns for
namespaces because it implies that the folder contains a collection of X
where really, what I intend is that the things in the folder pertain to
X. "exception" was not used because that is a reserved word in php.
Renamed visitors folder/ns to visitor

In general, I have the convention of not using plural nouns for
namespaces because it implies that the folder contains a collection of X
where really, what I intend is that the things in the folder pertain to
X. "exception" was not used because that is a reserved word in php.
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