pgsql: Extensive ECPG documentation improvements

Extensive ECPG documentation improvements

Satoshi Nagayasu, reviewed and revised by Peter Eisentraut

Since this introduces new refentries that we probably don't want to publish as
man pages, tweak man page stylesheet to omit man pages without manvolnum
element.

Peter Eisentraut

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=f7b15b5098ee89a2628129fbbef9901bded9d27b

Modified Files
--------------
doc/src/sgml/ecpg.sgml          | 6667 +++++++++++++++++++++++++++++++--------
doc/src/sgml/stylesheet-man.xsl |   44 +
2 files changed, 5319 insertions(+), 1392 deletions(-)