Merge branch 'texmaker' into 'master'

Texmaker move to ucam -> v5.0.4

See merge request !108

packages/texmaker.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
+
+  <package id="texmaker" name="Texmaker" revision="%version%.1" reboot="false" priority="70">
+    <variable name="VERSION" value="5.0.4" />
+    <check type="uninstall" condition="exists" path="Texmaker %VERSION% (64-bit)" />
+
+    <install cmd="msiexec /qn /i %WPKGSOFTWARE%\texmaker\Texmaker_%VERSION%_Win_x64.msi" />
+
+    <upgrade include="remove" />
+    <upgrade include="install" />
+
+    <!-- Remove non-msi version used e.g. in Chemistry until version 4.1.1, if present.
+         Once installed by msi, uninstall.exe is no longer present. -->
+    <remove cmd='"%PROGRAMFILES(x86)%\Texmaker\uninstall.exe" /S'>
+      <condition>
+        <check type="file" condition="exists" path='%PROGRAMFILES(x86)%\Texmaker\uninstall.exe' />
+      </condition>
+    </remove>
+
+    <remove cmd='msiexec /qn /x {A0BF9BD0-B576-47A7-B650-0204CB190D28}'>
+      <exit code="1605" /> <!-- not installed, e.g. because we're upgrading from the old non-msi installer -->
+    </remove>
+  </package>
+
+</packages:packages>