Change weather_sleep to avoid writing to tracked files

Changed weather_sleep.sh and dracula.sh so that they do
not assume that weather.txt exist.  As a result I was
able to remove weather.txt as a tracked file.

.gitignore

@@ -0,0 +1 @@
+data/weather.txt

data/weather.txt

@@ -1 +0,0 @@
-Loading...

scripts/dracula.sh

@@ -104,6 +104,11 @@ main()
   # status bar
   tmux set-option -g status-style "bg=${gray},fg=${white}"
 
+  # wait unit data/weather.txt exists just to avoid errors
+  # this should almost never need to wait unless something unexpected occurs
+  while [ ! -f $current_dir/../data/weather.txt ]; do
+      sleep 0.01
+  done
 
   # Powerline Configuration
   if $show_powerline; then

scripts/sleep_weather.sh

@@ -19,6 +19,10 @@ main()
 
 	current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
+	if [ ! -f $current_dir/../data/weather.txt ]; then
+		printf "Loading..." > $current_dir/../data/weather.txt
+	fi
+
 	$current_dir/weather.sh > $current_dir/../data/weather.txt
 
 	while tmux has-session &> /dev/null