Fixed build system for aterm files (should have been caught by Jenkins last 10 days ago).
Added termpretty.l++ program (lex file generating c++ code) to output formatted aterms.
(X10) (Autoconf) Enable X10 support
(Autoconf) Enable up to Boost v1.53
(Autoconf) Enable up to GCC 4.8.x
Merge remote-tracking branch 'origin/master' into HEAD
Merge https://github.com/rose-compiler/edg4x-rose

CI: Merging with the current head of LLNL-Rose