Remove buffer files by default and write temp files. Fixes Iss #23#26

Merged

jhill1 merged 2 commits intomasterfrom fix_temp_files

Apr 9, 2019

+52-37

Commits on Apr 9, 2019

Remove buffer files by default and write temp files which get removed. Modified tests to check this works. Fixed duplicated test
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Removing python 2.7 in travis. Thi is now a python 3 module only....
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