* CalendarSyncManager/TaskSyncManager: only set calendar name and color on sync when data is available
* DavResourceFinder: test getCurrentUserPrincipal
* dav4android: use java.util.ServiceLoader, resilience against multi-status with <propstat> without <status> + test
* ical4android: always set HAS_ATTENDEE_DATA to 1
* vcard4android: small fixes
* merge translations from Transifex
* use ExternalFileLogger to log synchronization, if enabled in Settings
* new settings: log to external file / log verbose
* DavResource: check for well-known even if service type of user-given URL can't be determined
* remove oblsete testing assets
* ical4j update to 2.0-beta1 (fixes#509, fixes#606)
* only run sync adapters in :sync process, set thread context class loaders appropriately
* remove "class" attribute from XML requests (fixes#615)
* remove VJOURNAL/notes sync (will be implemented later)
* setup: add "install Tasks app" fragment
* version bump to 0.8.0-beta1
* use Tasks instead of Mirakel
* handle task list colors
* allow independent selection of calendar/task sync for the same CalDAV calendar
* minor refactoring (don't use return value of Builder)
* handle more task fields and time zones
* sync interval setting for tasks
* account settings: show whether CardDAV server supports VCard 4.0
* CardDAV GET: ask for VCard 3.0 or VCard 4.0 (preferred) contacts
* CardDAV multiget: ask for VCard 4.0 contacts if the server supports it
* CardDAV PUT: send VCard 4.0 contacts if the server supports it
* import Apache httpclient-android rev. 1652769 correctly (hopefully fixes#491)
We can't use a repository version because there's no release yet which
contains rev. 1652769. However, this revision is necessary to get SNI with Android <4.2, too.
To avoid packaging a pre-compiled jar, this source lib has been added as a subproject:
apache-httpclient, branch 4.3.5-android, revision 1652769
Fixes#491.
* new Settings activity
* Settings: display/change user name, password, preemptive auth.
* Settings: display/change sync. interval for contacts and calendars
* requires permission GET_ACCOUNTS to list accounts in Settings
* requires permission READ_SYNC_SETTINGS to display current sync intervals
* remove obsolete files from res/
* update copyright notices
* version bump to 0.7
* SSLConnectionSocketFactory is now SNI-capable, so there's no need
to manage SNI in DAVdroid
* keep secure protocol/cipher suite definitions
* use a patched jar until https://issues.apache.org/jira/browse/HTTPCLIENT-1591 is fixed
* make it work again with non-proxied connections
* add tests for proxied and non-proxied connections
* add tests for SNI, host name and certificate verification
* moved all dependencies to gradle instead of shipping .jar files in the app/lib directory
* switched to official Android port of HttpClient instead of httpclientandroidlib
* new .gitignore and project files
