Store GeoJSON object as post meta

[miguelpeixe]

For performance improvement, store GeoJSON object as post metadata.

When to clear posts GeoJSON data

• Marker created/updated (all posts)
• Default marker changed (all posts)
• Category updated (category posts)
• Post saved/created (this post)

Buttons to add

• Clear mappress cache - all cache - (admin menu, mappress settings)
• Clear mappress cache - single post - (admin post listing first column actions)

[miguelpeixe]

Fixed 3ea90fe899ce8fbed1abc51dc126afad1f438d9d