Merge pull request #2 from unepwcmc/Tims-minor-edits

Tims minor edits
add arabic text for habitats
Update README.md
Admin links to working homepage.

This is a bit of a hack. The i18n/l10n works in a surprising way, and
scopes the first section of all non-admin URLs with the language:

  /<language>/home
  /en/home

Which means that once you navigate away from one of these localised
pages (e.g. /validations), you lose the scoped URL and any rails paths
are ruined:

  /en/home -> /validations
  links to home_path become /home rather than /en/home
  meaning, the language is set to home and the url redirects to /home/home

I don't have time to fix/work around this, so we have this commit.
Update application.html.erb
add analytics
Merge branch 'master' of github.com:unepwcmc/BlueCarbon
fix bootstrap issue
Remove non-manifest file specific asset_tag

Only the pre-defined manifest files are precompiled automatically, so
any individual files required should be imported in existing manifest
files, and then those files included.
Rails shouldn't be serving assets in production, that's the job of nginx
Rails shouldn't be serving assets in production, that's the job of nginx
Use manifest files rather than individual files so that asset pipeline
works
use the term ecosystems instead of habitats
Change footer to read 'mapping toolkit'
replace instances of 'habitat' with 'ecosystem'