Pull request lightningd/plugins#133

Some minor travis changes, attempting to address missing coverage inside plugins

4968
5137
5138
5144
5152
5153
5154
5155
5156
5158
5159

Range Diff Matrix


4968..5137
4968..5138	5137..5138
4968..5144	5137..5144	5138..5144
4968..5152	5137..5152	5138..5152	5144..5152
4968..5153	5137..5153	5138..5153	5144..5153	5152..5153
4968..5154	5137..5154	5138..5154	5144..5154	5152..5154	5153..5154
4968..5155	5137..5155	5138..5155	5144..5155	5152..5155	5153..5155	5154..5155
4968..5156	5137..5156	5138..5156	5144..5156	5152..5156	5153..5156	5154..5156	5155..5156
4968..5158	5137..5158	5138..5158	5144..5158	5152..5158	5153..5158	5154..5158	5155..5158	5156..5158
4968..5159	5137..5159	5138..5159	5144..5159	5152..5159	5153..5159	5154..5159	5155..5159	5156..5159	5158..5159