Revert "Delete .project"

This reverts commit 37f4276b06dcb99149658d482ca35b43e53cf53f.
Revert "Delete org.springframework.ide.eclipse.core.prefs"

This reverts commit 3965971ee34f61951765b3bfce10ba49f18890cd.
Revert "Delete org.springframework.ide.eclipse.beans.core.prefs"

This reverts commit c6c10d72b8e6a38e80529097647380bd6419ace6.