Full project restructure

[prasannavl]

Great job on quickly hacking up so far. But I guess, this has grown reasonably and so I thought I'll migrate it to a project structure with npm, and a build system - so we can slowly start modularizing it.

Unfortunately, there is no master branch on this - so, I haven't created a Pull Request yet. If this seems okay to you guys, please create a master branch and let me know so I can create a PR, or jus t directly base it off my master here: https://github.com/prasannavl/flood-map/tree/master

I've also written Travis build scripts to auto create a travis build and push to the gh-pages branch whenever someone pushes to the master so it auto build using gulp. Does all the image minimization, compression, minification, runs tests if required, and auto deploys from master.

Will modify README accordingly if this makes sense to you guys. For testing it out, please clone my master branch, and run npm install, and the gulp build to get the local build.

PS: Also for Travis an autodeply ssh key is required, which will have to be added after encrypting it to the .travis for auto commits to gh-pages - but all the base work is already done.

[planemad]

@prasannavl thank you for doing this! The rains are back and I just reset the data for new reports.

Are your changes still relevant?

[prasannavl]

I don't see why not. However, two things I'd take into account:

1. My branch is still a little old, since I see a few commits from last year here that wouldn't be there.
   Merging them may be as easy as it's just works, or might require a bit of manual work.
2. Once 1 is done, everything including node, npm, and the deps have to be brought up to date.

If you could do 1, I should be able to make some time towards the end of the week.