Merge pull request #12 from tadpol/envPluginDir

Allow for overriding the location of exo plugins via ENV var
Merge pull request #13 from tadpol/envPluginDir

Created a utilities class and put some useful class methods into it.
Merge pull request #14 from tadpol/master

Transform Plugin
Merge pull request #15 from tadpol/master

Add some documentation and options.
Spec can now update multiple portals

Summary:
Spec can now update multiple devices under multiple
portals that are under a single domain.

Test Plan: None

Reviewers: danweaver

Reviewed By: danweaver

Differential Revision: http://codereview.exosite.com/D15
Merge pull request #16 from fiveohhh/master

Spec can now update multiple portals
fix wording for Windows instructions
Merge pull request #17 from tadpol/master

Allow for specifying the transform function as a file.
Merge branch 'master' of github.com:exosite/exoline
python3 compatibility
Merge pull request #18 from tadpol/master

Change Readmulti to work by limits rather than time.
fixed some corner cases with read chunking changes