deploynodeapp - remove requirement for main script in top-level directory

Please remove the requirement for the main script to reside in the top-level directory. This is unnecessary, and it forces me to adopt your directory structure for my app. For example, when i use -m .src/app.js, I get the following error:

Error: Main script file ./src/app.js must be in the top level directory

Here's how I worked around the problem:

• Use -m app.js
• Do a soft link as follows: ln -s .src/app.js app.js

Then everything works properly.

I consider this to be a defect. I don't want to use Apigee's directory structure, nor do I want it to influence my directory structure. Please remove the requirement that the main script must reside in the top-level directory structure. It will work just fine.

Start by locating the deploynodeapp handling for the -m/--main script option and reproduce the reported command with ./src/app.js. Trace where the top-level-directory validation produces the shown error. Done means a main script in a nested directory is accepted without requiring a symlink or a top-level copy.