Rework weapon scheme handling in frontend and fix a couple of bugs
There were many oddities in weapon scheme editing which are fixed now:
* When you left the weapon scheme editor, everything flashed briefly
* When you leaft the weapon scheme editr, the weapon scheme selection always reverted to Default. Very annoying
* Clicking on New or Copy now instantly creates and save the new weapons set
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget">
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="0">
<widget class="QPushButton" name="pbLoad">
<property name="text">
<string>Load</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QPushButton" name="pbSave">
<property name="text">
<string>Save</string>
</property>
</widget>
</item>
<item row="1" column="2">
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>217</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item row="0" column="0" colspan="3">
<widget class="QTextEdit" name="textEdit">
<property name="font">
<font>
<family>Liberation Mono</family>
<pointsize>10</pointsize>
</font>
</property>
</widget>
</item>
</layout>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>