Implements send2cgeo for oc.de
ViewPager - Notify when contents of adapter change

Some missing calls to notifyDataSetChanged discovered when testing
latest version of support library
Workaround for #2851

I inserted the include option for the new (temporary?) cache detail page and added an append command for the dd tag which is used instead of a p tag in the new cache page.
I know that the append is called twice in this case. Maybe someone can optimize it but it has shown no side effects at tests with both URLs.
Fix #2882 - Clear offline log through cache object

Go through cache object instead of directly to cgData so change
notifications can be made
Merge pull request #2887 from Lineflyer/master

Workaround for #2851
Align release with master for send2cgeo
Fixing Loc parser tests
Fix Api-Level handling for OKAPI searches
#2890: add better debugging information
Merge pull request #2871 from rsudev/issue2396

DO NOT MERGE: Implements draft send2cgeo for oc.de
Merge pull request #2891 from campbeb/fix2882

Fix #2882 - Clear offline log through cache object
Merge branch 'fix-2741' into release
refactoring: minor cleanup in utils classes
Fix spelling/typos/broken translations.
fix #2886: trackable quick search not working

* introduce separate trackable connectors
* new detection of not activated trackables
* fix geokrety urls
new: show basic geokrety information
Merge pull request #2894 from robho/master

Fix spelling/typos in Swedish translation
Merge pull request #2883 from campbeb/pagerAdapterFix

ViewPager - Notify when contents of adapter change
Small TODO comment added
#2747 TTS distances should use Android plurals