Finished review of web client.

documentation/usage-guide/conf.py

documentation/usage-guide/downloading.md

documentation/usage-guide/downloading.rst

documentation/usage-guide/images/webclient_add-to-basket.png

documentation/usage-guide/images/webclient_basket1.png

documentation/usage-guide/images/webclient_basket2.png

...ntation/usage-guide/images/webclient_download-buttons.png

documentation/usage-guide/images/webclient_info1.png

documentation/usage-guide/images/webclient_info2.png

...tion/usage-guide/images/webclient_layer-configuration.png

...mentation/usage-guide/images/webclient_search-buttons.png

...ion/usage-guide/images/webclient_toggle-search-single.png

documentation/usage-guide/images/webclient_toggle-search.png

documentation/usage-guide/index.rst

documentation/usage-guide/intro.rst

documentation/usage-guide/sample-requests.md

documentation/usage-guide/sample-requests.rst

documentation/usage-guide/searching.rst

documentation/usage-guide/viewing.rst

documentation/usage-guide/web-client.rst