No longer provide a default random fallback (was bcrypt-isaac), fixes #16

Author: dcodeIO

README.md

@@ -38,10 +38,9 @@ var bcrypt = require('bcryptjs');
 
 ### Browser
 
-In the browser, bcrypt.js by default relies on [Web Crypto API](http://www.w3.org/TR/WebCryptoAPI)'s getRandomValues
-interface to obtain secure random numbers. bcrypt-isaac.js additionally ships with the ISAACs PRNG used as the default
-fallback if the former is not available. See [bcrypt.setRandomFallback](https://github.com/dcodeIO/bcrypt.js#setrandomfallbackrandom)
-to set a custom fallback.
+In the browser, bcrypt.js relies on [Web Crypto API](http://www.w3.org/TR/WebCryptoAPI)'s getRandomValues
+interface to obtain secure random numbers. If no cryptographically secure source of randomness is available, you may
+specify one through [bcrypt.setRandomFallback](https://github.com/dcodeIO/bcrypt.js#setrandomfallbackrandom).
 
 ```js
 var bcrypt = dcodeIO.bcrypt;
@@ -121,7 +120,8 @@ API
 ### setRandomFallback(random)
 
 Sets the pseudo random number generator to use as a fallback if neither node's `crypto` module nor the Web Crypto
-API is available. Please note: It is highly important that this PRNG is cryptographically secure!
+API is available. Please note: It is highly important that the PRNG used is cryptographically secure and that it is
+seeded properly!
 
 | Parameter       | Type            | Description
 |-----------------|-----------------|---------------

dist/README.md

@@ -13,22 +13,3 @@ option to specify a random fallback for browser environments that do not support
 
 * **[bcrypt.min.js](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt.min.js)**
   has been compiled with Closure Compiler using advanced optimizations.
-  
-The standard version, which is slightly smaller, is recommended if you are already using a Web Crypto API polyfill or
-intend to not support anything else / intend to use a custom random fallback.
-
-### Including ISAAC PRNG as default random fallback
-
-The Web Crypto API is fairly new and not supported by all / older browsers. For maximum compatibility this version
-includes [isaac.js](https://github.com/rubycon/isaac.js), a JavaScript implementation of the ISAAC CSPRNG, in conjunction
-with an [entropy accumulator](https://github.com/dcodeIO/bcrypt.js/blob/master/src/bcrypt/prng/accum.js) for initial
-seeding, which are then used as the default random fallback if neither node's crypto module nor the Web Crypto API is
-available.
-
-**See also:** [fallback random number generators considered insecure](https://github.com/dcodeIO/bcrypt.js/issues/16)
-
-* **[bcrypt-isaac.js](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt-isaac.js)**
-  contains the commented source code.
-
-* **[bcrypt-isaac.min.js](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt-isaac.min.js)**
-  has been compiled with Closure Compiler using advanced optimizations.