Refactor
Start porting ImportExport code
Legacy IE base code works
Convert FieldPluginManager to generic and add tests
Convert other managers to generic.

Needs some debugging
Fix
Move code around
Nan fix
Clang fix
Closes #389
Add travis line to README
Gcc fix
Add travis.yml
Correct build script
Merge pull request #509 from benjaminlarson/benDragDrop

Fix of color connection change
Merge branch 'master' into importExport