Bugs #2940, #2941, #2942: DOB calculation, BC labs middlename display, Bloodbankt & Micro3T lab documents

Change-Id: Icbec114807becfc86b5aede8caeec6374ba14d71
Signed-off-by: Anita Kanyange <ak.kanyange@gmail.com>
Merge "Bugs #2940, #2941, #2942: DOB calculation, BC labs middlename display, Bloodbankt & Micro3T lab documents"