vimrc and tmux.conf update

.tmux.conf

 
 source "/usr/share/powerline/bindings/tmux/powerline.conf"
 
+set -g default-terminal "screen-256color"
+

.vimrc

 " Flash the screen instead of beeping on errors.
 set visualbell
 " Enable mouse for scrolling and resizing.
-set mouse=a
+"set mouse=a
 " Set the window's title, reflecting the file currently being edited.
 "set title
 " Use colors that suit a dark background.