Small fixes and additions to the moneropedia and the simple wallet gu…

wallet & daemon dev guide improvements

downloads: mention syncing from scratch is much faster

add Monero-PHP library to Merchants and Services list

Since it is good practice to test changes locally before pushing to
git, instructions are added to help newcomers to comfortably do just
that.

Remove “How to “ texts from index page and update wallet-roc header.

header changes, formatting, include data types

Should cut down on people downloading the blockchain by default.

Add pymonero and Monero Monitor for Chrome

Monero Monitor is a Chrome extension for viewing information re: Monero.

pymonero is a new python package for interacting with bitmonerod and simplewallet

Update links

Update links to new java version of lightwallet.