phar build tweaks

* added build script
* rebuilt stub to include shebang
* moved built phar to build dir

bin/build-phar.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+composer global require humbug/box:dev-master
+composer install --no-dev
+[ -d build ] || mkdir build
+box build
+
+# reinstall deps (to regenerate autoloader and bring back dev deps)
+rm -Rf vendor/*
+composer install

box.json

@@ -1,6 +1,6 @@
 {
     "main" : "./psalm",
-    "output" : "./psalm.phar",
+    "output" : "./build/psalm.phar",
     "directories" : [
         "src",
         "assets",
@@ -14,5 +14,7 @@
         "Herrera\\Box\\Compactor\\Php"
     ],
     "compression" : "BZ2",
-    "chmod" : "0755"
+    "chmod" : "0755",
+    "shebang" : "#!/usr/bin/env php",
+    "stub" : true
 }