Issue #1188500: Provide a reverse relationship on term reference fields and a generic entity reverse relationship handler so anyone can use it.

Issue #1135918: Add aliasing to fields, filters, et al and implement with field api so that content can appear using all of its labels for all of its entities, making it easier to find the content.

If a field api field has only 1 column, or that column is the basic "value", do not show the column name in filter/sort/etc.

by dereine: Remove unneeded entity_info from field.views.inc. This fixes the notices only, the field's are already loaded since the previous commit.

Put fields that only exist in one bundle in that bundle in the UI rather than a generic "Fields" group.

#1079496 by dereine: Fix renamed field names for list fields. This caused an additional filter, which didn't worked.

1024586 by merlinofchaos, dereine: Provide a way to move old fields in views data. Additional move field-api data to it.

#1024586 by merlinofchaos, dereine: Provide a way to move old fields in views data. Additional move field-api data to it.

#895046 by bojanz: Follow up of the multiple field handler. Fixes an issue with group-by and rename entity_api_classes.

#895046 by bojanz, dereine, merlinofchaos: Implement proper multiple field api handling and improve field api rendering in general.

#936196 by jmiccolis, yhahn, adrian, bojanz, dereine: Don't use entity_load for the fieldapi-field handler, but use real sql fields.