Annotating fields when rendered in views

[tanius]

It should be quite easily possible to support annotating field content also when it appears rendered inside views. The basic work for this is done in #12 and #14.

However, hook_preprocess_field() as implemented by us in module annotator is not sufficient to add our required data-annotator-target attributes when fields are rendered inside views. For this case, we also have to implement hook_preprocess_views_view_fields() [example]. That's all to do for this issue.

With this feature, annotating / ethnographically coding small pieces of content could become a lot more comfortable, as the content would be nicely aggregated into tabular views, avoiding page load times. However, the Firefox crashes triggered by "many" (20+) Annotator instances have to be solved for real until this scenario is realistic.