Auto merge of #1646 - FooSoft:master, r=Valloric

Fixing install script

Fixing issue #1645 where the `subprocess.call` was being incorrectly used, preventing install. Also made `install.py` be executable so that you can run it directly from shell instead of having to execute `python install.py`

install.py

@@ -18,8 +18,7 @@ def Main():
               'to run:\n\tgit submodule update --init --recursive\n\n' )
 
   python_binary = sys.executable
-  args = ' '.join( sys.argv[1:] )
-  subprocess.call( ' '.join( [ python_binary, build_file, args ] ) )
+  subprocess.call( [ python_binary, build_file ] + sys.argv[1:] )
 
   # Remove old YCM libs if present so that YCM can start.
   old_libs = (