Rewrite sitemaps

• Tidying of paths cdc8d5e
• Updated documentation about new sitemap changes f11c209
• Fixed bug with invalid links in sitemapindex e2d9bd1
• Remove codecov from install 3ea8c0e
• Specifiy node version in travis bc11f11
• Attempt to fix codecoverage results 58f955e
• Fixed bug with sitemap detection 80b5a47
• Flesh out existing tests to incorporate sitemap func 7e311a6
• proxyquire to test watch func 253a1c3
• Tidied setOptions func 929805e
• Sitemap rewrite first commit (experimental) 2ec6f5b
• another file missing from prev commit 9ad6d57
• Adding package changes (missing from last commit) 72f49bd
• Removed fs from testing 4699898
• Updated the installation & usage section 604a1b7
• Updated documentation, including installation section bda366c
• 'watch' now properly builds. Also typo fixes. 99bd215
• Fixed readme links d55894c

v2.0.0...v2.1.0