Remove left-over characters.

Thanks for catching this, @chrismayer.
Refer to v.5.0.1 when explaining ExtJS loading.
Merge pull request #314 from marcjansen/pr-313-follow-up

Adress several comments regarding #313
Fixed the test for data/reader/Attribute

A lot of changes cause of ExtJS5. Please review.
Merge pull request #317 from KaiVolland/data-reader-attribute-test-extjs5

Fixed the test for data/reader/Attribute
Fixed the test for data/reader/WfsCapabilities.js

Adjustments to the class where needed.
Using the config object know to get Getters and Setters.
This is needed for ExtJS5 and also supported by ExtJS4, so we should use it.
Merge pull request #321 from KaiVolland/data-reader-wfscabapilities-extjs5

Fixed the test for data/reader/WfsCapabilities.js