FillLPG - LPG Station Finder

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* Fixed bug preventing Map Picker being displayed when Adding a Station
* Implemented 'Copy Station Address' when viewing details via the Log viewer
* Removed Cheapest and Most Expensive Station list options
* Replaced with Cheapest UK and Cheapest Non-UK Station list options ;-)
* Updates to Log Viewer to list new items in correct order
* Compiled against latest Android version for improved compatibility
* Minor bug fixes