- eg, "foamNewSource IO -", "foamNew -s IO -"  displays on stdout
  convenient for grabbing boilerplate directly

Use new "T" function to avoid duplicate registration of grad(U) object.

- eg,
  . PATH_TO_FOAM/etc/bashrc myPrefs.sh

- To-do:
      wmake/rules/General/bison
      wmake/rules/General/btyacc
      wmake/rules/General/btyacc++
      wmake/rules/General/byacc
      wmake/rules/General/moc
      wmake/rules/General/yacc

  but these files have <TAB>

This reverts commit d7d88b7d.

- ThirdParty Allwmake now handles SYSTEMOPENMPI directly without this
  kludge

- NB: A csh version is not needed, since the values here are only
      sourced during the wmake process

- sh/ksh/bash only, doesn't seem possible for csh

etc/cshrc: allow option setting for option software to be specified in ~/OpenFOAM/???/apps/<application>/cshrc

etc/bashrc: allow option setting for option software to be specified in ~/OpenFOAM/???/apps/<application>/bashrc

Squashed merge of particleInteractions up to
commit e7cb5bcf0315c359539ef1e715e1d51991343391

reporting.

Making sixDoFRigidBodyMotionConstraints less verbose by default, now
requires debug switch to be set.

- change from 'kde-open %f' to the desktop-agnostic 'firefox %f' as
  the default document browser.

- this provides a means to temporarily override the default settings
  and/or the prefs.{csh,sh} settings.

  bash:
      name=       -> unset name
      name=value  -> export name=value

  csh:
      name=       -> unsetenv name
      name=value  -> setenv name value

  eg,
      . <WM_PROJECT_DIR>/etc/bashrc WM_COMPILER=Gcc45 WM_MPLIB=
  to use gcc 4.5 and the default mplib

BUG: syntax error in settings.sh