Allowing a name to be an empty string (develop branch)

src/eosjs-serialize.ts

@@ -353,7 +353,7 @@ export class SerialBuffer {
         if (typeof s !== 'string') {
             throw new Error('Expected string containing name');
         }
-        const regex = new RegExp(/^[.1-5a-z]{1,12}[.1-5a-j]?$/);
+        const regex = new RegExp(/^[.1-5a-z]{0,12}[.1-5a-j]?$/);
         if (!regex.test(s)) {
             throw new Error('Name should be less than 13 characters, or less than 14 if last character is between 1-5 or a-j, and only contain the following symbols .12345abcdefghijklmnopqrstuvwxyz'); // eslint-disable-line
         }

src/tests/eosjs-serialize.test.ts

@@ -114,13 +114,6 @@ describe('Serialize', () => {
             expect(serialBuffer.getName()).toEqual(expectedName);
         });
 
-        it('should not be able to push name with an account name too short', () => {
-            const name = '';
-
-            const shouldFail = () => serialBuffer.pushName(name);
-            expect(shouldFail).toThrowError(invalidNameErrorMessage);
-        });
-
         it('should not be able to push name with an account name too long', () => {
             const name = 'abcdabcdabcdab';