Merge branch 'master' into clippy

.travis.yml

@@ -0,0 +1,16 @@
+language: rust
+
+rust:
+    - nightly
+
+os:
+    - osx
+
+before_script:
+    - brew update
+    - brew install rocksdb
+
+cache:
+  directories:
+  - $TRAVIS_BUILD_DIR/target
+  - $HOME/.cargo

cov.sh

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+#!/bin/sh
+# Installing KCOV under ubuntu
+# https://users.rust-lang.org/t/tutorial-how-to-collect-test-coverages-for-rust-project/650#
+### Install deps
+# $ sudo apt-get install libcurl4-openssl-dev libelf-dev libdw-dev cmake gcc binutils-dev libiberty-dev
+#
+### Compile kcov
+# $ wget https://github.com/SimonKagstrom/kcov/archive/master.tar.gz && tar xf master.tar.gz
+# $ cd kcov-master && mkdir build && cd build
+# $ cmake .. && make && sudo make install
+
+### Running coverage
+if ! type kcov > /dev/null; then
+   	echo "Install kcov first (details inside this file). Aborting."
+	exit 1
+fi
+
+cargo test --no-run || exit $?
+mkdir -p target/coverage
+kcov --exclude-pattern ~/.multirust --include-pattern src --verify target/coverage target/debug/ethcore*
+xdg-open target/coverage/index.html

util/cov.sh

@@ -0,0 +1 @@
+../cov.sh