ltlparse: move in parsetl/, and declare in tl/parse.hh

* src/ltlparse/public.hh: Rename as...
* src/tl/parse.hh: ... this.
* src/ltlparse/: Rename as...
* src/parsetl/: ... this.
* NEWS: Mention the change.
* README, configure.ac, doc/org/tut01.org, doc/org/tut02.org,
doc/org/tut03.org, doc/org/tut10.org, src/Makefile.am,
src/bin/common_finput.cc, src/bin/common_finput.hh, src/bin/ltl2tgta.cc,
src/kripkeparse/kripkeparse.yy, src/parseaut/parseaut.yy,
src/tests/checkpsl.cc, src/tests/checkta.cc,
src/tests/complementation.cc, src/tests/consterm.cc,
src/tests/emptchk.cc, src/tests/equalsf.cc, src/tests/ikwiad.cc,
src/tests/kind.cc, src/tests/length.cc, src/tests/ltlprod.cc,
src/tests/ltlrel.cc, src/tests/randtgba.cc, src/tests/readltl.cc,
src/tests/reduc.cc, src/tests/syntimpl.cc, src/tests/tostring.cc,
src/tl/Makefile.am, src/twaalgos/lbtt.cc, wrap/python/spot_impl.i,
iface/ltsmin/modelcheck.cc: Adjust.

src/Makefile.am

@@ -25,8 +25,8 @@ AUTOMAKE_OPTIONS = subdir-objects
 # List directories in the order they must be built.  Keep tests at the
 # end, after building '.' (since the current directory contains
 # libspot.la needed by the tests)
-SUBDIRS = misc priv tl ltlparse graph twa twaalgos ta taalgos kripke	\
-          kripkeparse parseaut . bin tests sanity
+SUBDIRS = misc priv tl graph twa twaalgos ta taalgos kripke	\
+          kripkeparse parseaut parsetl . bin tests sanity
 
 lib_LTLIBRARIES = libspot.la
 libspot_la_SOURCES =
@@ -34,9 +34,9 @@ libspot_la_LDFLAGS = $(BUDDY_LDFLAGS) -no-undefined
 libspot_la_LIBADD =  \
   kripke/libkripke.la \
   kripkeparse/libkripkeparse.la \
-  ltlparse/libltlparse.la \
   misc/libmisc.la \
   parseaut/libparseaut.la \
+  parsetl/libparsetl.la \
   priv/libpriv.la \
   taalgos/libtaalgos.la \
   ta/libta.la \