Travis (#333)

change travis config to make branches

.travis.yml

@@ -4,6 +4,12 @@ language: c
 #default linux build env is: xenial
 compiler: gcc
 
+# move some env variables to homebrew env
+env:
+  global:
+    - HOMEBREW_TRAVIS_BRANCH=$TRAVIS_BRANCH
+    - HOMEBREW_TRAVIS_COMMIT=$TRAVIS_COMMIT
+
 # Test on Linux and MacOS
 matrix:
   include:
@@ -19,6 +25,14 @@ addons:
       - gcc-arm-none-eabi
       - libnewlib-dev
   homebrew:
+    packages:
+      - readline
+      - p7zip
+      - libusb-compat
+      - perl
+      - qt5
+      - wget
+      - RfidResearchGroup/proxmark3/arm-none-eabi-gcc
     taps: RfidResearchGroup/proxmark3
     
 install: