rm *PushOnly, add isPushOnly and toStack

src/script.js

@@ -145,8 +145,8 @@ function fromASM (asm) {
   }))
 }
 
-function decompilePushOnly (script) {
-  var chunks = decompile(script)
+function toStack (chunks) {
+  chunks = decompile(chunks)
   typeforce(isPushOnly, chunks)
 
   return chunks.map(function (op) {
@@ -157,11 +157,6 @@ function decompilePushOnly (script) {
   })
 }
 
-function compilePushOnly (chunks) {
-  typeforce(isPushOnly, chunks)
-  return compile(chunks)
-}
-
 function isCanonicalPubKey (buffer) {
   if (!Buffer.isBuffer(buffer)) return false
   if (buffer.length < 33) return false
@@ -196,12 +191,13 @@ module.exports = {
   decompile: decompile,
   fromASM: fromASM,
   toASM: toASM,
-  compilePushOnly: compilePushOnly,
-  decompilePushOnly: decompilePushOnly,
+  toStack: toStack,
+
   number: require('./script_number'),
 
   isCanonicalPubKey: isCanonicalPubKey,
   isCanonicalSignature: isCanonicalSignature,
+  isPushOnly: isPushOnly,
   isDefinedHashType: isDefinedHashType
 }