* lyxfunctional.h: delete back_inserter_fun functions and helper

* lyxfunctional.h: delete back_inserter_fun functions and helper
classes.
* lyx_gui.C (start): use for_each instead of explicit for loop
* cursor.C (insert): use for_each instead of explicit for loop

* bufferlist.C (getFileNames): use std::transform and
std::back_inserter instead of std::copy and lyx::back_inserter_fun.

* buffer_funcs.C (bufferErrors): use for_each instead of explicit
for loop

* buffer.C (changeLanguage): use for_each instead of explicit for
loop
(hasParWithID): implement using getParFromID

* LaTeXFeatures.C: ws change only

* CutAndPaste.C (replaceSelectionWithString): Use a temporary var
to cleanup a bit.

* BufferView_pimpl.C (trackChanges): use for_each instead of
expilicit for loop

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9182 a592a061-630c-0410-9148-cb99ea01b6c8