Changes to rc file and rewording of info messages

Renamed .valetrc to .valetphprc to define it's purpose more
specifically and reworded info message when file with version is found

Author: MeMattStone

cli/valet.php

@@ -495,14 +495,14 @@
      */
     $app->command('use [phpVersion] [--force]', function ($phpVersion, $force) {
         if (!$phpVersion) {
-            $path = getcwd() . '/.valetrc';
+            $path = getcwd() . '/.valetphprc';
             $linkedVersion = Brew::linkedPhp();
             if (!file_exists($path)) {
                 return info(sprintf('Valet is using %s.', $linkedVersion));
             }
 
             $phpVersion = trim(file_get_contents($path));
-            info('Found \'' . $path . '\' with version: ' . $phpVersion);
+            info('Found \'' . $path . '\' specifying version: ' . $phpVersion);
 
             if ($linkedVersion == $phpVersion) {
                 return info(sprintf('Valet is already using %s.', $linkedVersion));