Revert "ignore .project and .classpath files and .settings folders"

This reverts commit 331ff98d720a7a1ae1a45c1c9d018fd743b3eed0.
Revert "remove .project, .classpath files and .settings folders from repository"

This reverts commit c05daa593605c64b0d7fe57aea5c5635316d0316.