Merge 'trunk' into 'roundtrip'

Merge 'trunk' into 'roundtrip'

r1529@Thesaurus (orig r1528):  ribasushi | 2009-05-03 10:34:46 +0200
Bring version bump back - there is still work to be done (reoundtrip branch), I think this is too early
r1530@Thesaurus (orig r1529):  ribasushi | 2009-05-04 07:49:50 +0200
Remove duplicate req
r1542@Thesaurus (orig r1541):  jawnsy | 2009-05-17 17:24:11 +0200
Applied patch to switch dependency on XML::XPath to XML::LibXML (Closes: RT#32130)
r1543@Thesaurus (orig r1542):  ribasushi | 2009-05-17 18:11:36 +0200
Update changelog
r1544@Thesaurus (orig r1543):  plutooth | 2009-05-28 00:24:13 +0200
MySQL producer skips length attribute for columns which do not support that attribute. Currently following column types are added to that list: date time timestamp datetime year
r1545@Thesaurus (orig r1544):  ribasushi | 2009-05-31 09:21:10 +0200
Add POD checker and fix a couple of POD errors
r1546@Thesaurus (orig r1545):  ribasushi | 2009-05-31 09:35:38 +0200
Reorder authors and consolidate them in one point (AUTHORS). Add link from main POD
r1547@Thesaurus (orig r1546):  ribasushi | 2009-06-01 13:53:44 +0200
Switch to Module::Install
Create a 'share' directory to be used with Module::Install::ShareDir / File::ShareDir
Move DiaUml tt2 files to share, adjust DiaUml producer (no tests but I think I got it right)
Move grammar files to sharedir too (only one for now, but this is where we will eventually keep all of them)

r1548@Thesaurus (orig r1547):  jgoulah | 2009-06-02 23:04:00 +0200
added parser support for MySQL default values with a single quote
r1549@Thesaurus (orig r1548):  ribasushi | 2009-06-03 12:44:44 +0200
Merge forgotten rewrite of the GraphViz producer - keep all the logic intact but do not do any parameter sanity checking - just pass things straight to GraphViz.pm
r1550@Thesaurus (orig r1549):  ribasushi | 2009-06-04 00:05:05 +0200
Graphviz does not like empty hahsrefs - prune those