lot of cleanups and improvements to the theme

.config/awesome/lib/functions.lua

@@ -0,0 +1,21 @@
+-- {{{ Helper functions
+function file_exists(name)
+    local f = io.open(name, "r")
+    if f~=nil then io.close(f) return true else return false end
+end
+
+function run_once(cmd)
+    findme = cmd
+    firstspace = cmd:find(" ")
+    if firstspace then
+        findme = cmd:sub(0, firstspace-1)
+    end
+    awful.util.spawn_with_shell("pgrep -u $USER -x " .. findme .. " > /dev/null || (" .. cmd .. ")")
+end
+
+function tablelength(T)
+    local count = 0
+    for _ in pairs(T) do count = count + 1 end
+    return count
+end
+