Webclient toolbar webstart button links to /webstart/
Make /webstart/ page focus on webstart (not webclient)

Conflicts:

	components/tools/OmeroWeb/omeroweb/webstart/templates/webstart/index.html
Tweak webclient message and link in /webstart/ index

Conflicts:

	components/tools/OmeroWeb/omeroweb/webstart/templates/webstart/index.html
Fixing {% url 'webstart_index' %} for Django 1.6
Merge pull request #1840 from will-moore/webstart_popup_windows_11656_develop

Webstart popup windows 11656 develop