Install lcov from apt, fix path.

.travis.yml

@@ -47,14 +47,14 @@ matrix:
 
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install lcov
   - source <(curl -SLs https://raw.githubusercontent.com/fortyseveneffects/travis-ci-arduino/master/install.sh)
 
 install:
   # Install lcov from source
-  - wget http://ftp.fr.debian.org/debian/pool/main/l/lcov/lcov_1.11.orig.tar.gz
-  - tar xf lcov_1.11.orig.tar.gz
-  - sudo make -C lcov-1.11/ install
+  # - wget http://ftp.fr.debian.org/debian/pool/main/l/lcov/lcov_1.11.orig.tar.gz
+  # - tar xf lcov_1.11.orig.tar.gz
+  # - sudo make -C lcov-1.11/ install
+  - sudo apt-get install lcov
   - gem install coveralls-lcov
   - lcov --version
 
@@ -74,7 +74,6 @@ script:
 
 after_success:
   # Generate code coverage information & send to Coveralls
-  - cd build
   - lcov --directory . --capture --output-file coverage.info
   - lcov --remove coverage.info 'test/*' '/usr/*' 'external/*' --output-file coverage.info
   - lcov --list coverage.info