First stab at removing doctests

This is for #173

Not sure how to handle all the exposition removed from the
README. Maybe I should leave it? It doesn't really fit that neatly
into examples because a lot of the coode is just introducing data
types and linking off to ES docs.

.gitignore

@@ -16,3 +16,4 @@ bloodhound.iml
 .hg/00changelog.i
 .hg
 .hgignore
+examples/bloodhound-examples.cabal

.travis.yml

@@ -36,8 +36,8 @@ script:
   - stack setup
   - stack update
   - stack build -j1
-  - stack test bloodhound:doctests --flag bloodhound:$ESFLAG
   - stack test bloodhound:tests --test-arguments="--qc-max-success 500" --flag bloodhound:$ESFLAG
+  - cd examples && stack build -j1
 
 cache:
   directories: