Add GOPATH, fix grep aliases

vimrc

@@ -16,7 +16,7 @@ set smarttab
 set encoding=utf-8
 set nocompatible
 set t_Co=256
-set background=light
+set background=dark
 set hidden
 set history=100
 set nowrap

zshrc

@@ -103,7 +103,11 @@ HISTFILE=~/.zsh-history
 HISTSIZE=10000
 SAVEHIST=10000
 
+# Go configuration (is this still needed with go mod?)
+export GOPATH=$HOME/go
+
 # set PATHs (highest priority last)
+export PATH=$HOME/go/bin:$PATH
 export PATH=$HOME/local/bin:$PATH
 export PATH=$HOME/bin:$PATH
 
@@ -122,9 +126,9 @@ git config --global alias.br branch
 # Other aliases
 
 # recursive grep with line numbers and colour, ignoring binary files:
-alias gnr="grep -nR -I --exclude-dir='.*' --color"
+alias gnr="grep -nR -I --color"
 # same but case-insensitive:
-alias gnri="grep -nRi -I --exclude-dir='.*' --color"
+alias gnri="grep -nRi -I --color"
 
 # Postgres default user:
 export PGUSER=postgres