While fetching collections from the server, ignore non-EteSync collections, which is everything apart from "etebase.vevent", "etebase.vcard" and "etebase.vtodo".
As EteSync v2 supports notes, a new type would have to be added here later to support them.

etebase can have collection color in #RRGGBBAA. This needs to be converted to #AARRGGBB format, ehich is accepted by Qt.

CollectionColor attribute was not registered with Akonadi

Set parent collection for removed collection memberships

- Declare unused parameters
- Fix comparison of signed and unsigned ints

- Handlers for different types are no longer required - everything is handled in etesyncresource.cpp
- etesyncadapter has been replaced with etebaseadapter
- Removed v1 code from clientstate

- Logout from EteSync
- Delete cache directories
- Delete KWallet entry

- Storing encryption key to KWallet
- Passed winId to client state as KWallet requires it

Resource cache dir: ~/.local/share/akonadi_etesync_resource/
Account cache dir: resourceCacheDir/username/
Contents:
username <- stores account
CollectionCache/
ItemCache/

- Handle Unauthorized error for detecting change in remote credentials
- Handle PermissionDenied error for detecting problems with account status

login() will pass even if email if not confirmed, there are problems with billing etc.
So, we need to make a small fetch (collection lise with limit 1) to check if the account status is fine.

Caching functions are required in the main resource file as well as fetch jobs

Required because Akonadi deletes the item before itemRemoved() is called.
The etebase cache is needed for the call to the server.

Also polished up the code - added some null checks and defines for fetch size

- Sync token is set in EntriesFetchJob's mCollection's remoteRevision, which is then passed to CollectionModifyJob in slotItemsRetrieved()
- Changed CollectionCacheAttribute to EtebaseCache attribute, as it has to used for both collections and items
- Commented out item sync code in BaseHandler, which was used to handle conflict error (will see later)

- Made new CollectionCacheAttribute
- Modified JournalsFetchJob to save cache buffer to collection attribute
- Cache will be used to get EtebaseCollection object to fetch items in retrieveItems()

Changed JournalsFetchJob to use etebase for fetching collections. Collections are being setup to Akonadi collections in the same job.
Added relevant functions to etebaseadapter for the same.
Made root resource collection a class member as it is now passed to journalsfetchjob and used in slotCollectionsRetrieved().

Encryption passwords are not needed in EteSync 2.0

Added login() function in etesyncclientstate
Changed LoginJob to call this function

Needed for handling smart pointers and QStrgin <-> char * conversions
Also added relevant include dirs to the resource CMakeLists.txt

Required for the EteSync 2.0 resource

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

This was needed because it is a protected variable in ResourceBase, but accessible through EteSyncResource as BaseHandler is a friend of EteSyncResource.
Also added minor logging details.

Needed for transalting all i18n strings