Version Control With Subversion Source

* src/en/book/ch09-reference.xml
Clarify that --trust-server-cert is spefically for ignoring warnings
about unknown CAs.

Suggested by: danielsh

* src/en/book/ch06-server-configuration.xml
Use stronger language when referring to the example plist file.

Suggested by: Quinn Taylor <quinntaylor@...>

* src/en/book/ch06-server-configuration.xml
Still more launchd section edits.

Patch by: Quinn "More patches than an heirloom quilt" Taylor <quinntaylor@...>

* src/en/book/ch09-reference.xml
(svn.ref.svn.c.mergeinfo): Remove an incorrect '...' in the synopsis.

* src/en/book/ch06-server-configuration.xml
Add admonishment about launchd's complexity and recommendation to
use the man system.

* src/en/book/ch06-server-configuration.xml
More cleanups based on Quinn's review of my butchering of his patch.

* src/en/book/ch06-server-configuration.xml
Remove a FIXME by showing the output of the grep'ed 'launchctl status' output.

Patch by: Quinn Taylor <quinntaylor@...>
(Tweaked by me.)

* src/en/book/ch06-server-configuration.xml
Use the org.apache.subversion namespace for the launchd job.

Suggested by: Quinn Taylor <quinntaylor@...>

Edited wiki page SvnBook16Status through web user interface.

* src/en/book/ch08-embedding-svn.xml
Use svn_client_create_context() instead of svn_client_ctx_t() now,
remove explanation of that former weirdness.