Work on pdf doc generator

build/pdf/README.txt

+To make htmldoc working from wiki.dolibarr.org, them must be modified to have
+
+$_SERVER["HTTP_USER_AGENT"] is "HTMLDOC/x.y.z"
+$_COOKIE["htmldoc"] may also be defined if set on command line.
+
+To disable part, add 
+class="htmldoc-ignore" with css
+.htmldoc-ignore { display: none; }
+

build/pdf/htmldoc.book

-#HTMLDOC 1.8.27
--t pdf14 -f "../../docs/dolibarr.pdf" --webpage --no-title --logoimage "../../docs/images/dolibarr_256x256.png" --linkcolor #2200c0 --linkstyle plain --size Universal --left 0.30in --right 0.30in --top 0.40in --bottom 0.30in --header ... --header1 ... --footer c/d --nup 1 --tocheader ... --tocfooter ... --portrait --color --no-pscommands --no-xrxcomments --compression=9 --jpeg=50 --fontsize 10.0 --fontspacing 1.0 --headingfont Helvetica --bodyfont Helvetica --headfootsize 9.0 --headfootfont Helvetica --charset iso-8859-1 --links --no-embedfonts --pagemode document --pagelayout single --firstpage p1 --pageeffect none --pageduration 10 --effectduration 1.0 --no-encryption --permissions all  --owner-password ""  --user-password "" --browserwidth 680 --no-strict --no-overflow
-http://wiki.dolibarr.org/index.php/Main_Page
-http://wiki.dolibarr.org/index.php/What_Dolibarr_Do
\ No newline at end of file

build/pdf/htmldoc_en.book

+#HTMLDOC 1.8.27
+-t pdf14 -f "../../doc/dolibarr_en.pdf" --webpage --no-title --logoimage "../../doc/images/dolibarr_256x256.png" --linkcolor #2200c0 --linkstyle plain --size Universal --left 0.30in --right 0.30in --top 0.40in --bottom 0.30in --header ... --header1 ... --footer c/d --nup 1 --tocheader ... --tocfooter ... --portrait --color --no-pscommands --no-xrxcomments --compression=9 --jpeg=50 --fontsize 10.0 --fontspacing 1.0 --headingfont Helvetica --bodyfont Helvetica --headfootsize 9.0 --headfootfont Helvetica --charset iso-8859-1 --links --no-embedfonts --pagemode document --pagelayout single --firstpage p1 --pageeffect none --pageduration 10 --effectduration 1.0 --no-encryption --permissions all  --owner-password ""  --user-password "" --browserwidth 680 --no-strict --no-overflow
+http://wiki.dolibarr.org/index.php/Main_Page
+http://wiki.dolibarr.org/index.php/What_Dolibarr_Do

doc/.gitignore

+/dolibarr_*.pdf