Update libtorrent bottle for Travis macOS

.travis.yml

@@ -134,13 +134,13 @@ install:
         cp "version" $HOME/hombebrew_cache
         cd "$HOME/hombebrew_cache"
         wget https://builds.shiki.hu/homebrew/libtorrent-rasterbar.rb
-        wget https://builds.shiki.hu/homebrew/libtorrent-rasterbar-1.1.6+git20180101.b45acf28a5+patched-configure.el_capitan.bottle.tar.gz
+        wget https://builds.shiki.hu/homebrew/libtorrent-rasterbar-1.1.7+git20180422.3ede0b9c20+patched-configure.el_capitan.bottle.tar.gz
       fi
 
       # Copy custom libtorrent bottle to homebrew's cache so it can find and install it
       # Also install our custom libtorrent formula by passing the local path to it
       # These 2 files are restored from Travis' cache.
-      cp "$HOME/hombebrew_cache/libtorrent-rasterbar-1.1.6+git20180101.b45acf28a5+patched-configure.el_capitan.bottle.tar.gz" "$(brew --cache)"
+      cp "$HOME/hombebrew_cache/libtorrent-rasterbar-1.1.7+git20180422.3ede0b9c20+patched-configure.el_capitan.bottle.tar.gz" "$(brew --cache)"
       brew install "$HOME/hombebrew_cache/libtorrent-rasterbar.rb"
 
       if [ "$build_system" = "cmake" ]; then