Install gcc-4.9 on travis
Install gcc-4.9 on travis

abingham/emacs-ycmd,abingham/emacs-ycmd,ptrv/emacs-ycmd,phst/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,phst/emacs-ycmd,abingham/emacs-ycmd,emacsmirror/ycmd,phst/emacs-ycmd,abingham/emacs-ycmd,ptrv/emacs-ycmd,emacsmirror/ycmd,ptrv/emacs-ycmd,emacsmirror/ycmd,emacsmirror/ycmd,ptrv/emacs-ycmd,emacsmirror/ycmd,ptrv/emacs-ycmd,ptrv/emacs-ycmd,phst/emacs-ycmd,phst/emacs-ycmd,emacsmirror/ycmd,phst/emacs-ycmd