exa2pro/starpu-max: porting work to Maxeler DFE @ 70d92869a12e4d521488c6543fc892a5bb6a8643

Samuel Thibault 0a88862c0a Make showcheck recursive, fix hang when there is not test log		13 lat temu
..
pi	4e84b0ce42 examples: check return values of starpu functions	14 lat temu
Makefile.am	0a88862c0a Make showcheck recursive, fix hang when there is not test log	13 lat temu