Tests: Remove devDependency and change to relative path names

gulpfile.js

@@ -92,11 +92,11 @@ gulp.task('lint', function() {
 });
 
 gulp.task('browser', ['errors'], shell.task([
-  './node_modules/.bin/browserify index.js --insert-global-vars=true --standalone=bitcore -o ./browser/bitcore.js'
+  './node_modules/.bin/browserify index.js --insert-global-vars=true --standalone=bitcore -o browser/bitcore.js'
 ]));
 
 gulp.task('browser-test', shell.task([
-  'find test/ -type f -name "*.js" | xargs ./node_modules/.bin/browserify -o ./browser/tests.js'
+  'find test/ -type f -name "*.js" | xargs ./node_modules/.bin/browserify -o browser/tests.js'
 ]));
 
 gulp.task('browser-all', ['errors'], function(callback) {

package.json

@@ -87,7 +87,6 @@
     "chai": "~1.10.0",
     "closure-compiler-jar": "git://github.com/eordano/closure-compiler-jar.git",
     "gulp": "^3.8.10",
-    "gulp-browserify": "^0.5.0",
     "gulp-closure-compiler": "^0.2.9",
     "gulp-jsdoc": "^0.1.4",
     "gulp-jshint": "^1.9.0",