Implemented recurrence tests

Taked strings directly from the taskwarrior documentation

Change-Id: I021ef080bdd1234cff14fd0399bb7b258f0c0ad8
Fix #426: Default: Meta lists should not show done tasks

Change-Id: Ib7c45b8361b3cc08ebadb18b6e22f68af16befe9
Update subtaskview on task done

Change-Id: Icac464f6d119c99d1c02d66a642c137993560bfc
Update taskfragment in tabletmode

Change-Id: I44ab8eded7b29dc9a33c4ab7a27ec5944fe330cb
Fix stackoverflow

Change-Id: I2605526c5bcd462bc02df7b073eaf0849c94f71b
Fix #383: taskwarrior syncing of recurring tasks

Change-Id: I4e319a6eecb0bac38504f29172701de0079a2a3e
Fix intergeroverflow in recurring

Change-Id: Ia28a8b41b2ac5810c5a44802fb0abe44bf62f2c2
Merge "Fix intergeroverflow in recurring"
Merge commit '5616ed766b238b0c75c8e1365685d041e23ba150'
Merge commit 'cea858d8f848e133c72aa8e311cb9beb5b79a1de'
Merge commit '5546f839e4c2273ea6d1cac6de43c756ffd6ebc8'
Merge commit '56e1cd39fc360969467441794fc6d29ac72c964b'