Fix travis / appveyor CI builds.

.appveyor/install.bat

@@ -5,7 +5,7 @@ SET LIB_DIR=%BUILD_DIR%\Libraries
 SET SRC_DIR=%BUILD_DIR%\tdesktop
 SET QT_VERSION=5_6_2
 
-call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
+call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\VC\Auxiliary\Build\vcvarsall.bat" x86
 
 call:configureBuild
 call:getDependencies

.travis/build.sh

@@ -542,6 +542,11 @@ buildCustomQt() {
   git apply "$QT_PATCH"
   cd ..
 
+  cd "$EXTERNAL/qt${QT_VERSION}/qtbase/src/plugins/platforminputcontexts"
+  git clone https://github.com/telegramdesktop/fcitx.git
+  git clone https://github.com/telegramdesktop/hime.git
+  cd ../../../..
+
   ./configure -prefix $QT_PATH -release -opensource -confirm-license -qt-zlib \
               -qt-libpng -qt-libjpeg -qt-freetype -qt-harfbuzz -qt-pcre -qt-xcb \
               -qt-xkbcommon-x11 -no-opengl -no-gtkstyle -static \

appveyor.yml

@@ -1,4 +1,4 @@
-image: Visual Studio 2015
+image: Visual Studio 2017
 clone_folder: C:\TBuild\tdesktop
 test: off
 deploy: off