[travis] Make the arduino download verbose (and move it from $HOME)

.travis.yml

@@ -1,7 +1,7 @@
 language: c
 before_install:
-  - pushd $HOME
-  - if [ ! -d arduino-1.6.7 ]; then wget http://downloads.arduino.cc/arduino-1.6.7-linux64.tar.xz && tar xf arduino-1.6.7-linux64.tar.xz; fi
+  - pushd ..
+  - if [ ! -d arduino-1.6.7 ]; then wget -v http://downloads.arduino.cc/arduino-1.6.7-linux64.tar.xz && tar xvf arduino-1.6.7-linux64.tar.xz; fi
   - popd
 install:
   - mkdir ../libs
@@ -12,7 +12,7 @@ install:
   - git clone https://github.com/keyboardio/KeyboardioSX1509.git
   - popd
 script:
-  - make compile size ARDUINO_PATH=$HOME/arduino-1.6.7 ARDUINO_LOCAL_LIB_PATH=../libs
+  - make compile size ARDUINO_PATH=../arduino-1.6.7 ARDUINO_LOCAL_LIB_PATH=../libs
 notifications:
   email:
     on_success: change
@@ -20,4 +20,4 @@ notifications:
 cache:
   - ccache
   - directories:
-    - $HOME/arduino-1.6.7
+    - ../arduino-1.6.7