Add janet logo,mMove some lib files to example.

Makefile

@@ -149,18 +149,6 @@ valtest: $(JANET_TARGET) $(TEST_PROGRAMS)
 	for f in build/*.out; do $(VALGRIND_COMMAND) "$$f" || exit; done
 	for f in test/*.janet; do $(VALGRIND_COMMAND) ./$(JANET_TARGET) "$$f" || exit; done
 
-###################
-##### Natives #####
-###################
-
-natives: $(JANET_TARGET)
-	$(MAKE) -C natives/json
-	$(MAKE) -j 8 -C natives/sqlite3
-
-clean-natives:
-	$(MAKE) -C natives/json clean
-	$(MAKE) -C natives/sqlite3 clean
-
 ########################
 ##### Distribution #####
 ########################
@@ -189,16 +177,11 @@ install: $(JANET_TARGET)
 	mandb
 	$(LDCONFIG)
 
-install-libs: natives
-	mkdir -p $(JANET_PATH)
-	cp -r lib $(JANET_PATH)
-	cp natives/*/*.so $(JANET_PATH)
-
 uninstall:
 	-rm $(BINDIR)/../$(JANET_TARGET)
 	-rm $(LIBDIR)/../$(JANET_LIBRARY)
 	-rm -rf $(INCLUDEDIR)
 	$(LDCONFIG)
 
-.PHONY: clean install repl debug valgrind test valtest emscripten dist install uninstall \
+.PHONY: clean install repl debug valgrind test valtest emscripten dist uninstall \
 	$(TEST_PROGRAM_PHONIES) $(TEST_PROGRAM_VALPHONIES)

README.md

@@ -3,6 +3,8 @@
 [![Build Status](https://travis-ci.org/bakpakin/janet.svg?branch=master)](https://travis-ci.org/bakpakin/janet)
 [![Appveyor Status](https://ci.appveyor.com/api/projects/status/32r7s2skrgm9ubva?svg=true)](https://ci.appveyor.com/project/bakpakin/janet)
 
+![Janet Logo](https://raw.githubusercontent.com/bakpakin/janet/master/assets/janet-big.png)
+
 Janet is a functional and imperative programming language and bytecode interpreter. It is a
 modern lisp, but lists are replaced
 by other data structures with better utility and performance (arrays, tables, structs, tuples).

examples/lazyseqs.janet

@@ -22,8 +22,8 @@
            (:= ,state (do ;forms)))))))
 
 # Use tuples instead of structs to save memory
-(def HEAD :private 0)
-(def TAIL :private 1)
+(def- HEAD 0)
+(def- TAIL 1)
 
 (defn empty-seq
   "The empty sequence."

natives/json/json.c

@@ -588,7 +588,7 @@ static int json_encode(JanetArgs args) {
 
 static const JanetReg cfuns[] = {
     {"encode", json_encode,
-        "(json/encode x)\n\n"
+        "(json/encode x [,tab [,newline]])\n\n"
         "Encodes a janet value in JSON (utf-8)."
     },
     {"decode", json_decode,