Update input-select style
Add wait-spinner icon for async actions
Update histogram to use Angular POST syntax
Convert search facets to select dropdown
Add shell HistoryService
Add backend class to save graph server-side

API endpoint "file-save" saves the graph to the
HistoryService-defined storage location, which is
envisioned to be a .git repository for committing
changes/actions captured through the UI.
Add UI component to save graph server-side
Add license headers
Merge branch 'master' of https://github.com/Lab41/Dendrite

Conflicts:
	src/main/java/org/lab41/dendrite/web/controller/GraphExportController.java
	src/main/java/org/lab41/dendrite/web/controller/viz/ElasticSearchController.java
	src/main/resources/META-INF/spring/applicationContext.xml
Update SpringMVC config
Move HistoryService to new lab41.dendrite package
Merge pull request #16 from kylef-lab41/master

search facets + historyservice + server-side graph save