Clean up scripts and add postinstall for installing via git

package.json

@@ -3,6 +3,7 @@
   "version": "4.0.2",
   "description": "Client-side Bitcoin JavaScript library",
   "main": "./dist/src/index.js",
+  "types": "./dist/src/index.d.ts",
   "engines": {
     "node": ">=8.0.0"
   },
@@ -14,14 +15,21 @@
     "bitcoinjs"
   ],
   "scripts": {
-    "coverage-report": "nyc report --reporter=lcov",
+    "build": "tsc -d -p ./tsconfig.json",
-    "coverage-html": "nyc report --reporter=html",
+    "coverage-report": "npm run build && npm run nobuild:coverage-report",
-    "coverage": "nyc --check-coverage --branches 90 --functions 90 --lines 90 mocha",
+    "coverage-html": "npm run build && npm run nobuild:coverage-html",
-    "integration": "npm run build && mocha --timeout 50000 test/integration/",
+    "coverage": "npm run build && npm run nobuild:coverage",
-    "standard": "standard",
+    "integration": "npm run build && npm run nobuild:integration",
-    "test": "npm run build && npm run standard && npm run coverage",
+    "nobuild:coverage-report": "nyc report --reporter=lcov",
-    "unit": "npm run build && mocha",
+    "nobuild:coverage-html": "nyc report --reporter=html",
-    "build": "tsc -d -p tsconfig.json"
+    "nobuild:coverage": "nyc --check-coverage --branches 90 --functions 90 --lines 90 mocha",
+    "nobuild:integration": "mocha --timeout 50000 test/integration/",
+    "nobuild:standard": "standard",
+    "nobuild:unit": "mocha",
+    "prepare": "npm run build",
+    "standard": "npm run build && npm run nobuild:standard",
+    "test": "npm run build && npm run nobuild:standard && npm run nobuild:coverage",
+    "unit": "npm run build && npm run nobuild:unit"
   },
   "repository": {
     "type": "git",
@@ -31,6 +39,7 @@
     "dist/src"
   ],
   "dependencies": {
+    "@types/node": "^10.12.18",
     "bech32": "^1.1.2",
     "bip32": "^1.0.0",
     "bip66": "^1.1.0",
@@ -44,11 +53,11 @@
     "safe-buffer": "^5.1.1",
     "tiny-secp256k1": "^1.0.0",
     "typeforce": "^1.11.3",
+    "typescript": "^3.2.2",
     "varuint-bitcoin": "^1.0.4",
     "wif": "^2.0.1"
   },
   "devDependencies": {
-    "@types/node": "^10.12.18",
     "bip39": "^2.3.0",
     "bip65": "^1.0.1",
     "bip68": "^1.0.3",
@@ -60,8 +69,7 @@
     "mocha": "^5.2.0",
     "nyc": "^11.8.0",
     "proxyquire": "^2.0.1",
-    "standard": "^11.0.1",
+    "standard": "^11.0.1"
-    "typescript": "^3.2.2"
   },
   "license": "MIT"
 }