keyboard: add shortcut keys to Game menu

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@770 d9718cc8-9f43-0410-858b-315f434eb58c
keyboard: define access keys for more menus

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@771 d9718cc8-9f43-0410-858b-315f434eb58c
zoom-levels: add menu options for Zoom In and Zoom Out

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@772 d9718cc8-9f43-0410-858b-315f434eb58c
keyboard: add hotkeys for Zones and Overlays menus

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@773 d9718cc8-9f43-0410-858b-315f434eb58c
keyboard: let ESCAPE be used to close New City dialog

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@774 d9718cc8-9f43-0410-858b-315f434eb58c
build.xml: when spawning subprocess, do not let it read from stdin

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@775 d9718cc8-9f43-0410-858b-315f434eb58c
keyboard: ESC while dragging mouse will cancel the current op

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@776 d9718cc8-9f43-0410-858b-315f434eb58c
keyboard: ESC will now close the current notification, if one is open

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@777 d9718cc8-9f43-0410-858b-315f434eb58c