Bump to 2.1.4.

README.md

@@ -53,14 +53,14 @@ If you're using [rebar3](https://github.com/erlang/rebar3), add `syn` as a depen
 
 ```erlang
 {deps, [
-  {syn, {git, "git://github.com/ostinelli/syn.git", {tag, "2.1.3"}}}
+  {syn, {git, "git://github.com/ostinelli/syn.git", {tag, "2.1.4"}}}
 ]}.
 ```
 Or, if you're using [Hex.pm](https://hex.pm/) as package manager (with the [rebar3_hex](https://github.com/hexpm/rebar3_hex) plugin):
 
 ```erlang
 {deps, [
-  {syn, "2.1.3"}
+  {syn, "2.1.4"}
 ]}.
 ```
 

src/syn.app.src

@@ -1,7 +1,7 @@
 {application, syn,
     [
         {description, "A global Process Registry and Process Group manager."},
-        {vsn, "2.1.3"},
+        {vsn, "2.1.4"},
         {registered, [
             syn_backbone,
             syn_groups,