Removed detaching of entityview DOM while initializing

Although detaching the entityview DOM while initializing might result in some minor performance
improvements, it prevents proper initialization of elements that need to be in the DOM (e.g. for
measuring width) and events issued by the entityview components may not be handled out of it.

Change-Id: I6fdfa9fa7f3b4ad88fff2c5475f1cc60cacd6f77
Merge "Removed detaching of entityview DOM while initializing"