Remove Composer cache configuration for Travis CI

This might be causing permissions issues, since the system user and the
Docker container root user are both trying to write to this location.

.travis.yml

@@ -49,10 +49,6 @@ addons:
       - libsodium-dev
       - uuid-dev
 
-cache:
-  directories:
-    - $HOME/.composer
-
 before_install:
   - travis_retry ./resources/scripts/travis-before-install.sh
   - ./resources/scripts/cmd-proxy.sh ./resources/scripts/system-info.sh

CHANGELOG.md

@@ -26,7 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 
 * Fix `RandomNodeProvider` behavior on 32-bit systems. The `RandomNodeProvider`
-  was converting a 6-byte string to a a decimal number, which is a 48-bit,
+  was converting a 6-byte string to a decimal number, which is a 48-bit,
   unsigned integer. This caused problems on 32-bit systems and has now been
   resolved.
 

resources/scripts/cmd-proxy.sh

@@ -18,7 +18,7 @@ cmd_proxy=""
 
 if [ "${architecture}" = "arm32" ]; then
     image="benramsey/ramsey-uuid:php-${php_version}-arm32v7"
-    volumes="-v ${PWD}:/app -v ${HOME}/.composer:/root/.composer"
+    volumes="-v ${PWD}:/app"
     cmd_proxy="docker run --rm ${volumes} -w /app ${image}"
 fi