* Make sure that no source files in boost are executable
* Make sure that all boost files are marked with eol-style native
* configure.ac: setup for new iostreams boost binary lib
* config/common.am: add boost iostreams variable
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13705 a592a061-630c-0410-9148-cb99ea01b6c8