README: Fix mentions of unified -> Beta #dev

Many thanks to @TonyHargrove for spotting this.
Settings GUI: Renamed main button to 'Play', and other fixes

- changed the main button to 'Play'
- removed the reliance on using a .bat file to run applications
- fixed various tooltips
- reorganized the ribbon menus slightly

Split commit from 101d4d805ed4ef89a78e2823634a5d7405400eec
Fix slag being present when turned off in the Settings GUI.

- fixes the issue where slag is still present due to missing tags

Split commit from 101d4d805ed4ef89a78e2823634a5d7405400eec
Fix for being unable to copy weaponry blueprints in the scriptorium
Removed obsolete utilities.

Split commit from 101d4d805ed4ef89a78e2823634a5d7405400eec
maint-bin: Make all options configurable; no more spammy git commits. :)

All the tools now look in maint-bin/maint-settings.ini for config settings.
So now when I (or anyone else) wishes to change the tool behaviour,
they don't need to commit new code.  This should result in less
commit spam.

A sample settings file is included with this commit.
Update showunitsyndromes.rb

Updated to r4
Merge pull request #103 from warmist/patch-1

Update showunitsyndromes.rb
Merge branch 'gold' into orc_rebalance

* gold:
  Update showunitsyndromes.rb
  maint-bin: Make all options configurable; no more spammy git commits. :)
  Removed obsolete utilities.
  Fix for being unable to copy weaponry blueprints in the scriptorium
  Fix slag being present when turned off in the Settings GUI.
  Settings GUI: Renamed main button to 'Play', and other fixes
  README: Fix mentions of unified -> Beta #dev