[FIX] sap.m.Link: mark events as handled, fix typo, improve performance

Due to conflicts not downporting the performance and typo fixes to make
downporting the other fixes done concurrently easier.

Conflicts:
	src/sap.m/src/sap/m/Link.js

Change-Id: I83b5153c5fcdfcdc98d3e6b843fbd039a5b27c13
BCP: 1472008421
CR-Id: 012006153200015717132014
Merge "[FIX] sap.m.Link: mark events as handled, fix typo, improve performance" into rel-1.26