Move Ubuntu configure script to .gitlab-ci.yml

Sorry, Omni. I'll probably move everything back to shell scripts in the future.

.gitlab-ci.yml

@@ -13,17 +13,45 @@ build linux x86_64:
     - docker
     - linux
   script:
+    # Install dependencies
     - apt-get update
-    - apt-get install --no-install-recommends -y qt5-default qtmultimedia5-dev clang make git sudo curl ca-certificates pkg-config upx unzip
+    - >
+      apt-get install --no-install-recommends -y qt5-default qtmultimedia5-dev
+      clang make git sudo curl ca-certificates pkg-config upx unzip
+
+    # Print versions
     - qmake --version
     - clang --version
 
-    - cd scripts
-    - ./configure_ubuntu.sh
+    # Extract BASS
+    - mkdir bass
+    - cd bass
+    - curl http://www.un4seen.com/files/bass24-linux.zip -o bass.zip
+    - unzip bass.zip
+    - cp x64/libbass.so ../lib
     - cd ..
 
+    # Extract Discord RPC
+    - mkdir discord-rpc
+    - cd discord-rpc
+    - curl -L https://github.com/discordapp/discord-rpc/releases/download/v3.4.0/discord-rpc-linux.zip -o discord_rpc_linux.zip
+    - unzip discord_rpc_linux.zip
+    - cp discord-rpc/linux-dynamic/lib/libdiscord-rpc.so ../lib
+    - cd ..
+
+    # Extract QtApng
+    - mkdir qtapng
+    - cd qtapng
+    - curl -L https://github.com/Skycoder42/QtApng/releases/download/1.1.0-5/build_clang_64_5.12.0.tar.xz -o apng.tar.xz
+    - tar -xvf apng.tar.xz
+    - cp clang_64/plugins/imageformats/libqapng.so ../lib
+    - cd ..
+
+    # Build
     - qmake -spec linux-clang
     - make -j4
+    
+    # Post-processing
     - upx --lzma -9 --force bin/Attorney_Online
   artifacts:
     paths:
@@ -61,7 +89,7 @@ build windows i686:
     cp -a ../base/themes/default base/themes/
     cp -a ../base/config.ini base/config.sample.ini
     cp -a ../base/serverlist.txt base/serverlist.sample.txt
-  
+
 # Miscellaneous files
 .deploy_misc: &deploy_misc |
     cp -a ../README.md README.md.txt
@@ -84,7 +112,7 @@ deploy linux:
     - cp -a ../lib/*.so .
     - cp -a ../bin/Attorney_Online .
     - echo "#!/bin/sh" >> ./run.sh
-    - echo "LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH ./Attorney_Online" >> ./run.sh
+    - echo "LD_LIBRARY_PATH=.:\$LD_LIBRARY_PATH ./Attorney_Online" >> ./run.sh
     - chmod +x ./run.sh
 
     # Zipping