Introduce PEEK command.

Peek at arbitrary resumes and resume objects paths with "hackmyresume
peek <resume> [objectPath]". For ex:

hackmyresume PEEK resume.json
hackmyresume PEEK resume.json info
hackmyresume PEEK resume.json employment[2].keywords
hackmyresume PEEK r1.json r2.json r3.json info.brief

src/utils/safe-json-loader.js

@@ -8,16 +8,41 @@ Definition of the SafeJsonLoader class.
 
 (function() {
 
-  var FS = require('fs');
+
+
+  var FS = require('fs')
+    , HMSTATUS = require('../core/status-codes')
+    , SyntaxErrorEx = require('./syntax-error-ex');
+
+
 
   module.exports = function loadSafeJson( file ) {
+
+    var ret = { };
     try {
-      return JSON.parse( FS.readFileSync( file ) );
+
+      ret.raw = FS.readFileSync( file, 'utf8' );
+      ret.json = JSON.parse( ret.raw );
+
     }
-    catch(ex) {
-      loadSafeJson.error = ex;
+    catch( ex ) {
+
+      // If we get here, either FS.readFileSync or JSON.parse failed.
+      // We'll return HMSTATUS.readError or HMSTATUS.parseError.
+      ret.ex = ( ret.raw && ret.raw.trim() ) ?
+        { // JSON.parse failed, likely because of a SyntaxError
+          fluenterror: HMSTATUS.parseError,
+          inner: SyntaxErrorEx.is( ex ) ? new SyntaxErrorEx( ex ) : ex
+        } :
+        { // FS.readFileSync failed, likely because of ENOENT or EACCES
+          fluenterror: HMSTATUS.readError,
+          inner: ex
+        };
+
     }
-    return null;
+
+    return ret;
+
   };