leaflet 7.x-1.0-beta2

A bug fix release with new functionality regarding icons, and supporting Leaflet version 0.5.

Changes since 7.x-1.0-beta1:

• Leaflet Views: return empty string when no results have been found
• Issue #1795304 by dasjo: Tilestream layer fix needs doesn't conform to leaflet 0.4 api
• Issue #1762248 by marleythedog: add height in field formatter options
• Issue #1427630 by Chi: use drupal_html_id to generate unique ids for the map
• Cleanup popup setting description
• Allow map definitions to provide a default icon
• Issue #1868470 by yannickoo, pvhee: adding icon support for the views plugin.
• Issue #1873464 by jherencia: fixing warning in views icon settings
• Mirror from #1855692 to solve views AJAX and leaflet
• Issue #1804992 by rballou: fix geojson API chang
• Unset the fixed zoom level of the default map. Instead we fit the zoom level to the points put on the map
• Adding more instructions to the README file, and recommending Leaflet version 0.5 or higher
• Provide a default empty icon array to avoid php warnings
• Issue #1898220 by cnburnett: provide better help when leaflet library is not found