Integration test refactoring (#126)

* integration test refactoring

* config file cleanup

* more test refactoring

* remove debug file

* moving around more files

* fixing up integration tests

* integration tests work

* some housekeeping

* fixing tests

* addressing comments

* debugging

* debugging

* actual debugging

* skip integration tests for travis

* install container-diff before integration tests

* syntax

* make test failures less noisy

* fixing tests

* hopefully fixing CI?

* fixes

* more fixes

* let's actually fix CI

* more testing

* testing

* proper auth

* typos

* adding support for args in integration tests

* formatting

* formatting

* adding support for testing bucket context

* adding bucket test dockerfile

* addressing comments

* syntax

integration/context/arr[0].txt

@@ -0,0 +1 @@
+hello

integration/context/bar/bam/bat

@@ -0,0 +1 @@
+bat

integration/context/bar/bat

@@ -0,0 +1 @@
+bat

integration/context/bar/baz

@@ -0,0 +1 @@
+baz

integration/context/foo

@@ -0,0 +1 @@
+foo

integration/context/tars/file

@@ -0,0 +1 @@
+normal file