Limit hostname to 32 chars, upgraded JustWifi library (#774)

code/html/index.html

@@ -287,7 +287,7 @@
 
                                 <div class="pure-g">
                                     <label class="pure-u-1 pure-u-lg-1-4">Hostname</label>
-                                    <input name="hostname" class="pure-u-1 pure-u-lg-1-4" type="text" action="reboot" tabindex="1" />
+                                    <input name="hostname" class="pure-u-1 pure-u-lg-1-4"  maxlength="32" type="text" action="reboot" tabindex="1" />
                                     <div class="pure-u-0 pure-u-lg-1-2"></div>
                                     <div class="pure-u-0 pure-u-lg-1-4"></div>
                                     <div class="pure-u-1 pure-u-lg-3-4 hint">

code/platformio.ini

@@ -56,7 +56,7 @@ lib_deps =
     https://bitbucket.org/xoseperez/fauxmoesp.git#2.4.2
     https://bitbucket.org/xoseperez/hlw8012.git#1.1.0
     https://github.com/markszabo/IRremoteESP8266#v2.2.0
-    https://bitbucket.org/xoseperez/justwifi.git#1.1.6
+    https://bitbucket.org/xoseperez/justwifi.git#1.1.7
     https://github.com/madpilot/mDNSResolver#4cfcda1
     https://github.com/xoseperez/my92xx#3.0.1
     https://bitbucket.org/xoseperez/nofuss.git#0.2.5