MFC: r269851,r272076,r274884,r282328,r285644,r286503,r286504,r286505,
r286506,r286510,r286561,r286562,r287034

Update svnlite from 1.8.10 to 1.8.14, and the support components:
serf->1.3.8, apr->1.5.2, apr-util->1.5.4, sqlite3->3.8.11.1

This includes syncing the developer templates with head.

MFC: r269851,r272076,r274884,r282328,r285644,r286503,r286504,r286505,
r286506,r286510,r286561,r286562,r287034

Update svnlite from 1.8.10 to 1.8.14, and the support components:
serf->1.3.8, apr->1.5.2, apr-util->1.5.4, sqlite3->3.8.11.1

This includes syncing the developer templates with head.

MFC r266728,266731,266735,266736,268135,268960,269833
Update apr 1.4.8 -> 1.5.1
Update apr-util 1.5.2 -> 1.5.3
Update serf 1.3.4 -> 1.3.7
Update svnlite 1.8.8 -> 1.8.10
Deal with svnlite.1 manpage.

Merge apr-1.4.8 -> apr-1.5.1 and update.

Vendor import apr-1.5.1