added clang -xermine support
added documentation of the xermine flag
added pts-xstatic-libstdc++-header-gcc-4.4.3.patch
renamed xstaticfld to clangldxs for better separation of pts-xstatic and pts-clang
renamed empty to clangempty and xstaticclangempty and empty to xstaticempty for better separation of pts-xstatic and pts-clang
added comment about -xsysld and -xermine incompatibility
renamed uclibcusr to xstaticusr for better separation of pts-xstatic and pts-clang
fixed typo in inclusion name bits/builtin_type_traits.h
improved cannot-find-ermine error message
added advice about proper #include <bits/builtin_type_traits.h>
updated TODOs; added archive creation commands
added READMEs for pts-clang, pts-xstatic and pts-static-binu