Fix #268: handle overlapping ranges in System.arraycopy.

Add check for overlapping ranges of entries within the same array and
fall-back to copy entries in reverse.
Merge pull request #269 from jonas/system-arraycopy

Fix #268: handle overlapping ranges in System.arraycopy.
Fix buildfiles to make sbteclipse work again
Merge pull request #270 from gzm0/fix-eclipse-buildfile

Fix buildfiles to make sbteclipse work again