feat: send String data more than 16kb

If the message exceeds 16kb (only String for now) it is cut in chunks and each chunk is sent over
the WebChannel. Then the message is restored and provided to the API user. Each user/internal
message over the WebChannel is converted to Uint8Array before sending. Adds several tests for Fully
Connected WebChannel: sending a 8192kb String, sendings 200 messages less than 16kb each.

closes #14

.gitignore

@@ -1,6 +1,6 @@
 node_modules
 jspm_packages
-npm-debug.log
+npm-debug*
 
 # Build
 dist/*

config.js

@@ -24,7 +24,7 @@ System.config({
       "path-browserify": "npm:[email protected]"
     },
     "github:jspm/[email protected]": {
-      "process": "npm:[email protected].2"
+      "process": "npm:[email protected].3"
     },
     "github:jspm/[email protected]": {
       "util": "npm:[email protected]"
@@ -47,7 +47,7 @@ System.config({
     "npm:[email protected]": {
       "process": "github:jspm/[email protected]"
     },
-    "npm:[email protected].2": {
+    "npm:[email protected].3": {
       "assert": "github:jspm/[email protected]"
     },
     "npm:[email protected]": {