Move the update scripts to root of repo

Also rework the variables in the environment to use /bin/true and
/bin/false instead of string representations of this. Might cause
problems, haven't tested yet

.environment

@@ -15,28 +15,28 @@ export PATH=${HOME}/bin:$PATH:/usr/lib/wine/bin:/sbin:/usr/sbin:/usr/local/bin
 # Give the path to the dotfiles
 export _DOTFILES="${HOME}/dotfiles"
 
-# Allow automatic updates
-export DISABLE_DOTFILES_AUTO_UPDATE="FALSE"
+# Allow checking for automatic updates
+export ENABLE_DOTFILES_AUTO_UPDATE=true
 
 # Set "true" to update without asking first
-export DISABLE_DOTFILES_UPDATE_PROMPT="FALSE"
+export DISABLE_DOTFILES_UPDATE_PROMPT=false
 
 # Update every 2 weeks (OMZ default)
 export UPDATE_DOTFILES_DAYS=13
 
 # Whether or not to automatically connect to a TMUX session when opening the shell
-export ENABLE_TMUXAC="FALSE"
+export ENABLE_TMUXAC=false
 
 # If there is not an active tmux session, we probably want one
 # Otherwise, the shell will not open the session again (eg. opening tabs, new terminals)
 if $(tmux list-sessions >> /dev/null 2>&1); then
-    export TMUXATT="TRUE"
+    export TMUXATT=true
 else
-    export TMUXATT="FALSE"
+    export TMUXATT=false
 fi
 
 # Automatically attach tmux session "C0DE"
-if [[ -z "$TMUX" && "$TMUXATT" != "TRUE" && "$ENABLE_TMUXAC" != "FALSE" ]]; then
+if [[ -z "$TMUX" && "$TMUXATT" && "$ENABLE_TMUXAC" ]]; then
     tmux attach -t C0DE || tmux new -s C0DE
 fi