Try to fix Travis not finding the files to release.

Also, make sure commands in uninstall.sh use the binaries that ship with
OS X and add the release files to .gitignore.

Author: kyleneideck

.gitignore

@@ -5,6 +5,7 @@
 .idea/
 tags
 cmake-build-debug/
+/Background-Music-*/
 
 # Everything below is from https://github.com/github/gitignore/blob/master/Objective-C.gitignore
 

.travis.yml

@@ -80,6 +80,7 @@ deploy:
   provider: releases
   api_key:
     secure: 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
+  file_glob: true
   file: Background-Music-*/*
   skip_cleanup: true
   on:

uninstall.sh

@@ -33,6 +33,8 @@
 # Halt on errors.
 set -e
 
+PATH=/bin:/sbin:/usr/bin:/usr/sbin; export PATH
+
 bold=$(tput bold)
 normal=$(tput sgr0)