build: Replace Autotools with Meson

Quick rundown of benefits:

- Much faster:
  - Autotools (with autogen): 22 seconds
  - Meson: 7 seconds
  - Meson (with ccache): 2 seconds

- Simpler:
  - ~1000 lines smaller
  - Single simple language

- Potentially better Windows (Visual Studio) support

What is not done:

- Complete Windows support
- OSX support (easy)

Closes hexchat#2013
Closes hexchat#1937
Closes hexchat#1803

.editorconfig

@@ -12,3 +12,8 @@ end_of_line = lf
 indent_style = space
 indent_size = 4
 end_of_line = lf
+
+[{meson.build,meson_options.txt}]
+indent_size = 2
+indent_style = space
+insert_final_newline = true

.gitignore

@@ -1,68 +1,8 @@
-# git ignore file
-# Unix generated files
-.deps/
-.libs/
-.dirstamp
-Makefile
-Makefile.in
-aclocal.m4
-autom4te.cache/
-/build-aux/
-confdefs.h
-conftest
-conftest.c
-conftest.err
-config.*
-config-win32.h
-configure
-configure.tmp
+/build
 doxygen*.tmp
 html/
-libtool
-m4/
-plugins/perl/irc.pm.h
-plugins/perl/xchat.pm.h
-plugins/perl/hexchat.pm.h
-po/Makefile.in.in
-po/POTFILES
-po/remove-potcdate.sed
-po/stamp-*
-osx/Info.plist
-data/man/hexchat.1
-data/pkgconfig/hexchat-plugin.pc
-data/misc/hexchat.appdata.xml
-data/misc/hexchat.desktop
-data/misc/hexchat.desktop.in
-data/misc/htm.desktop
-src/common/dbus/example
-src/common/dbus/org.hexchat.service.service
-src/common/dbus/remote-object-glue.h
-src/common/make-te
-src/common/marshal.*
-src/common/textenums.h
-src/common/textevents.h
-src/fe-gtk/hexchat
-src/fe-gtk/hexchat.rc
-src/fe-gtk/resources.c
-src/fe-gtk/resources.h
-src/fe-text/hexchat-text
-src/htm/Main.resources
-src/htm/thememan.exe
-src/htm/thememan.exe.config
-src/htm/thememan.exe.mdb
-src/htm/thememan
-stamp-h1
-*.a
-*.o
-*.la
-*.lo
-*.gmo
-*.mo
-*.po~
-*.pot
 *.patch
 tags
-src/**/*.plist
 # Win32 generated files
 plugins/wmpa/wmpa_h.h
 plugins/wmpa/wmpa_i.c
@@ -79,10 +19,9 @@ resource.h
 *.suo
 *.user
 *.exe
-#OSX
+# OSX
 osx/HexChat.app
 osx/.HexChat.app
-po/.intltool-merge-cache
 *.zip
 *.dmg
 *.VC.db

.travis.yml

@@ -1,36 +1,20 @@
 sudo: required
-dist: trusty
-language: c
-cache: apt
-compiler: clang
+services: docker
+before_install:
+    - docker pull ubuntu:16.04
+    - docker run --privileged --cidfile=/tmp/cid ubuntu:16.04 /bin/sh -c 'apt-get update && apt-get install -y meson/xenial-backports libcanberra-dev libdbus-glib-1-dev libglib2.0-dev libgtk2.0-dev libluajit-5.1-dev libnotify-dev libpci-dev libperl-dev libproxy-dev libssl-dev python3-dev mono-devel desktop-file-utils'
+    - docker commit `cat /tmp/cid` hexchat/ubuntu-ci
+    - rm -f /tmp/cid
+install:
+    - docker run -d --privileged --cidfile=/tmp/cid --volume=${PWD}:/opt/hexchat hexchat/ubuntu-ci /bin/systemd --system
 script:
-    - ./autogen.sh --enable-textfe --with-theme-manager --enable-static-analysis
-    - make V=1 -j$(nproc)
+    - docker exec `cat /tmp/cid` /bin/sh -c 'meson /opt/hexchat /opt/hexchat-build -Dwith-text=true -Dwith-theme-manager=true && ninja -C /opt/hexchat-build install'
+after_script:
+    - docker kill `cat /tmp/cid`
 notifications:
     irc:
         channels: "chat.freenode.net#hexchat-devel"
         template: "Build %{build_url} (%{commit} in %{branch}) by %{author}: %{message}"
         on_success: change
 matrix:
      fast_finish: true
-addons:
-    apt:
-        packages:
-            - automake
-            - autoconf-archive
-            - imagemagick
-            - intltool
-            - libcanberra-dev
-            - libdbus-glib-1-dev
-            - libglib2.0-dev
-            - libgtk2.0-dev
-            - libluajit-5.1-dev
-            - libnotify-dev
-            - libpci-dev
-            - libperl-dev
-            - libproxy-dev
-            - libssl-dev
-            - libtool
-            - monodevelop
-            - mono-devel
-            - python-dev