Merge branch 'master' into merge-facets

.travis.yml

@@ -23,12 +23,12 @@ addons:
       - cmake
 before_script:
   - |
-      cargo install cargo-travis || echo "cargo-travis already installed"
-      export PATH=$HOME/.cargo/bin:$PATH
+          pip install 'travis-cargo<0.2' --user && export PATH=$HOME/.local/bin:$PATH
 script:
   - cargo build
   - cargo test
   - cargo run --example simple_search
+  - cargo doc
 after_success:
   - cargo coveralls --exclude-pattern cpp/
   - travis-cargo doc-upload

src/query/term_query/term_scorer.rs

@@ -1,5 +1,6 @@
 use Score;
 use DocId;
+use postings::SkipResult;
 use fastfield::U64FastFieldReader;
 use postings::DocSet;
 use query::Scorer;
@@ -39,6 +40,10 @@ where
     fn size_hint(&self) -> usize {
         self.postings.size_hint()
     }
+
+    fn skip_next(&mut self, target: DocId) -> SkipResult {
+        self.postings.skip_next(target)
+    }
 }
 
 impl<TPostings> Scorer for TermScorer<TPostings>