Komax codereview#847

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komax wants to merge 17 commits intojruby:masterfrom

komax:komax_codereview

Commits on Jun 27, 2013

addition of @Override annotations to some classes; rewriting to code style in
komax
committed

Commits on Jun 28, 2013

lambda onlines now due code style with do instead of {}
komax
committed
addition of equals for IRScope based on hashCode() implemenation
komax
committed
removal of not required imports; add of @Override annotation for these files;
komax
committed

Commits on Jul 2, 2013