fixed Upgrading, fixed copy of cheat-sheet
issue #520: example bug in docs
suppress (probably invalid) message
fixed handling of --temp-path

Conflicts:
	CHANGELOG
added section for RHEL
issue #531
issue #529
issue #529, issue #532
set --javascript.app-path for tests
updated changelog
better use 32MB
Merge branch '1.3' of https://github.com/triAGENS/ArangoDB into 1.3

Conflicts:
	CHANGELOG
fixed leak in fs.getTempPath().
issue #535
removed superfluous \n
removed debug comments
fixed typo
bugfix wrong return codes
issue #535
issue #531