turn powerline stuff on by default, and setup go & powerline install pieces

.vimrc

@@ -37,8 +37,8 @@ let g:netrw_winsize = 25
 "----airline tabs for buffers-------
 let g:airline#extensions#tabline#enabled = 1
 let g:airline_theme = 'dark'
-let g:tmuxline_powerline_separators = 0
+let g:tmuxline_powerline_separators = 1
-let g:airline_powerline_fonts = 0
+let g:airline_powerline_fonts = 1
 let mapleader = ";"
 set showcmd
 map <Leader>a :bn<cr>

setup.sh

@@ -30,6 +30,24 @@ do
     ln -s $dir/$file ~/$file
 done
 
+#----------------------------------------------------------install  go and go-powerline--------------------------------------------------------------------
+
+if [ -z "$GOPATH" ]
+then
+    while true; do
+        read -p "do you want to install golang and go-powerline?" yn
+        case $yn in
+            [Yy]* ) 
+                sudo apt-get install golang;
+                go get -u github.com/justjanne/powerline-go;
+                break;;
+            [Nn]* ) 
+                exit;;
+            * ) echo "Please answer yes or no.";;
+        esac
+    done
+fi
+
 #----------------------------------------------------------install power line fonts------------------------------------------------------------------------
 
 if [ ! -d ~/fonts ]