Fix some FOP warnings

Examples overflowing the width of PDF pages have been fixed.

The remaining warnings are due to table cells, and require more
work.
reltool: fix wxWidgets-2.9 compability
reltool: Remove support for packages
Merge branch 'dgud/wx/fix-wx-2.9-compat/OTP-10407'

* dgud/wx/fix-wx-2.9-compat/OTP-10407: (26 commits)
  wx: Fix comments
  wx: Workaround wx-2.9 bugs
  wx: Mac fixes
  wx: Fix demo and tests
  wx: Allow 64 bits compilation on mac, requires wxWidgets-2.9
  appmon: Move runtime part to runtime_tools app
  reltool: fix wxWidgets-2.9 compability
  debugger: Fix 2.9 compat
  observer: Fix check for graphics contexts
  Observer: Fix distribution dialog
  observer: Fix font sizes
  wx: Fix the demo
  wx: Fix loading icons and cursors in Windows
  wx: Remove unnecessary casts
  wx: Fix changed getfunctions
  wx: Depricate wxCursor new functions
  wx: Fix int to enum
  wx: Include correct m4 file in 2.9
  wx: Update examples so they work with both wxWidgets 2.8 and 2.9
  wx: Modify tests so they work on wxWidgets-2.9
  ...
Implement ./otp_build configure --enable-silent-rules

With silent rules, the output of make is less verbose and compilation
warnings are easier to spot. Silent rules are disabled by default and
can be disabled or enabled at will by make V=0 and make V=1.
Merge branch 'nox/enable-silent-rules/OTP-10726'

* nox/enable-silent-rules/OTP-10726:
  Implement ./otp_build configure --enable-silent-rules
Turn warnings to errors on selected applications
Update copyright years
Prepare release