travis should check clippy-lints

Author: oli-obk

.travis.yml

@@ -20,7 +20,8 @@ script:
  - cargo build --features debugging
  - cargo test --features debugging
  - SYSROOT=~/rust cargo install
- - cargo clippy --lib -- -D clippy
+ - cargo clippy -- -D clippy
+ - cd clippy_lints && cargo clippy -- -D clippy
 
 after_success:
 # only test regex_macros if it compiles