Version Control With Subversion Source

Foreword.xml:
- 'FAQ sheet' is now translated as 'pagina delle FAQ'
- 'note-taking' is now translated as 'prender nota'
- replaced all forms such as: 'chiedere domande' with 'porre domande'
- replaced 'promemorie' with 'promemoria' (even when plural)
- 'groupware' is now translated as 'software collaborativo'
- direct speech is now prefixed with a colon
- 'pronouncements' is now translated as 'dichiarazioni'
- replaced 'la gente chiede sempre le stesse domande base' with 'le persone ponevano sempre le stesse domande base'
- replaced 'sulle' with 'nelle' in the sentence:
'le persone ponevano sempre le stesse domande base sulle(nelle) mailing list di Subversion'
- replaced the sentence:
'Rami e tag funzionano nella stessa maniera.....?'
with:
'Branch e tag funzionano come negli altri sistemi...?'
- replaced 'path of least resistance' with 'la via più facile'
- replaced 'può sembrare qualche sorta di telepatia' with 'potrà sembrare misteriosamente telepatica'
- few minor fixes to italian grammar

Fix some output syntax in the new chapter 4.

* src/en/book/ch04-branching-and-merging.xml: fix merge output.

Begin filling out the new chapter 4.

* src/en/book/ch04-branching-and-merging.xml: Flesh out 'syncing' section.

Link to more info on svn commit's behavior.

Thanks to Ben for waiting until I made the last commit to send this
great suggestion.

* src/en/book/ch02-basic-usage.xml: Florp.

Refine explanation about 'svn commit ; svn log'.

Thanks to Ben for the clarity.

* src/en/book/ch02-basic-usage.xml: I call him my "Little Chef".

Consistify the bevy of different paths that we were using to
repositories, eg:

- /usr/local/svn
- /usr/local/repositories
- /repos
- /tmp/repos
- /path/to/repos

And distill them all down into

- /var/svn

This not only fixes issue #34, but also appeals to my obsessive
compulsive nature. Life is good.

* src/en/book/ch01-fundamental-concepts.xml,
src/en/book/ch02-basic-usage.xml
src/en/book/ch03-advanced-topics.xml,
src/en/book/ch05-repository-admin.xml,
src/en/book/ch06-server-configuration.xml,
src/en/book/ch09-reference.xml,
src/en/book/appa-quickstart.xml,
src/en/book/appc-webdav.xml: Consistify.

Clarify that svnadmin create doesn't create intermediate directories.

This fixes issue #58.

* src/en/book/ch09-reference.xml: My other computer is a datacenter.

Explain why 'svn commit ; svn log' doesn't show your last log message.

This fixes issue #38.

* src/en/book/ch02-basic-usage.xml: I'd rather be sleeping!

Modified title capitalization in book title and subtitle to conform to Italian rules.

Hack chapter 4 into a million pieces, scatter on floor, attempt to reassemble.

* src/en/book/ch04-branching-and-merging.xml: slice and dice, add TODOs.

* src/en/book/ch02-basic-usage.xml: update some xref tags.