Little modification in the API usage page.

doc/Makefile.am

 ## Process this file with automake to produce Makefile.in
 
 EXTRA_DIST=index.doxygen structure.doxygen usage.doxygen newdec.doxygen \
-           decoder.dot doxygen.cfg
+           decoder.dot Helvetica.ttf doxygen.cfg
 
 doc:
 	doxygen doxygen.cfg

doc/Makefile.in

@@ -74,7 +74,7 @@ RANLIB = @RANLIB@
 STRIP = @STRIP@
 VERSION = @VERSION@
 
-EXTRA_DIST = index.doxygen structure.doxygen usage.doxygen newdec.doxygen            decoder.dot doxygen.cfg
+EXTRA_DIST = index.doxygen structure.doxygen usage.doxygen newdec.doxygen            decoder.dot Helvetica.ttf doxygen.cfg
 
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = ../src/config.h

doc/usage.doxygen

@@ -14,11 +14,6 @@ called <em>dvbpsi_AttachXXX()</em>.</p>
 call the <em>dvbpsi_DetachXXX()</em> function (ex:
 dvbpsi_DetachPAT()).</p>
 
-<p>Be careful! If a table wasn't active (b_current_next == 0) and the
-next is the same but active (b_current_next == 1) then the lists
-contained by the table structure are empty and should be caught from the
-previous structure.</p>
-
 <p>In this version of <em>libdvbpsi</em> the descriptors aren't decoded.
 These decoders will come in the next release.</p>