Merge branch 'release' into upstream
fix: remove undesired space between trackable log entries

* caused by bad parsing
* every entry had additional <div> tags
Change log update release

#2235
#2208
#2247
#2253
Polish typo fix and shorter string

As suggested by a user (have to trust him)
Merge pull request #2264 from Lineflyer/release

Change log update release + Polish string correction
Merge branch 'release'

Conflicts:
	main/res/values/strings.xml
Change log finetuning

Removed "New Feature" section for next maintenance release as there are none.
fix #2259: premium caches not identified in searches
Merge branch 'release' into upstream

Conflicts:
	main/res/values/strings.xml
Refactoring: remove non-sensical test, this can never be null
Refactoring: simplify code
Refactoring: add documentation about null-ness
Refactoring: document and refactor SearchResult constructors
Change log update release

#2259
fix #147: host markers on our own site
Merge branch 'release' into upstream

Conflicts:
	main/res/values/strings.xml
Uploading of modified coords to geocaching.com
Update main/res/values-pl/strings.xml

Spelling and grammatical mistakes corrected.
refactoring: reduce number of prepared statements

* for less memory usage
stronger compiler warnings in calendar addon

* disable compiler warnings for generated code
* disallow empty blocks