Revert the url distinguistion from "Implement Android Beam (NFC Sharing) for cgeo", as it seems the // urls don't work anymore.

This partly reverts commit a0825983139c99a9799503cafdf0dd0e3ce54a2f.
Implement a small internal browser (using webview) and allow the user to pick the user to select an internal/external browser if c:geo is the default of the geocaching url
Fixes #3893, Less transparent Action Bar

'Make main background less transparent. Should make actionbar icons more visible on light backgrounds'
- Adjusted implementation by schwabe according to suggestion from bananeweizen. (rsudev)
Merge pull request #3901 from schwabe/internal_webview

Internal webview
fix broken unit tests
have store/delete/refresh in action bar
fix #3928: update speech menu on actions
fix #3915: show filter count also in actionbar spinner
fix #3933: switching list leads to onloadfinished of current loader
fix #3931: respect filter when switching lists
Add more parallelism in static maps downloads
Add Intellij IDEA module file for compatibility library
Remove android-support-v4.jar from libs
The cache may not be loaded while initially preparing the options menu
lint fixes
ignore missing density folders in test project
show number of caches also for history and all lists
Complete and update French translations (through crowdin)
new: show recently opened caches in global search

Without any search term given, the search suggestions now contain the
most recent caches.

We should probably add a more explicit UI on the main screen for that,
too, as discussed before.
fix #3864: don't call search function on our own

This is already handled by the search configuration. We would only need
to call this ourselfes if we had not registered such a search
configuration.