added migrated 2.x add-ons

Signed-off-by: Kai Kreuzer <kai@openhab.org>

bundles/org.openhab.binding.ntp/README.md

@@ -0,0 +1,53 @@
+# NTP Binding
+ 
+The NTP binding is used for displaying the local date and time based update from an NTP server.
+ 
+## Supported Things
+ 
+This binding supports one ThingType: ntp
+ 
+## Discovery
+ 
+Discovery is used to place one default item in the inbox as a convenient way to add a Thing for the local time.
+ 
+## Binding Configuration
+ 
+The binding has no configuration options, all configuration is done at Thing level.
+ 
+## Thing Configuration
+ 
+The thing has a few configuration options:
+
+| Option |  Description  |
+|-----------------|--------------------------------------------------- |
+| hostname | The NTP server hostname, e.g. nl.pool.ntp.org |
+| refreshInterval | Interval that new time updates are posted to the eventbus in seconds. Default is 60s. |
+| refreshNtp | Number of updates between querying the NTP server (e.g. with refreshinterval = 60 (seconds) and refreshNtp = 30 the NTP server is queried each half hour). Default is 30. |
+| serverPort | The port that the NTP server could use. Default is 123. |
+| timeZone | The configured timezone. Can be left blank for using the timezone defined as openHAB configuration setting (or default system timezone if not defined). |
+
+ 
+## Channels
+ 
+The ntp binding has two channels:
+
+* `dateTime` which provides the data in a dateTime type
+* `string` which provides the data in a string type. The string channel can be configured with the formatting of the date & time. This also allows proper representation of timezones other than the java machine default one.
+
+See the [java documentation](https://docs.oracle.com/javase/8/docs/api/java/util/Formatter.html) for the detailed information on the formatting
+
+ 
+ 
+## Full Example
+ 
+Things:
+
+```
+ntp:ntp:demo  [ hostname="nl.pool.ntp.org", refreshInterval=60, refreshNtp=30 ]
+```
+
+Items:
+
+```
+DateTime Date  "Date [%1$tA, %1$td.%1$tm.%1$tY %1$tH:%1$tM]"  { channel="ntp:ntp:demo:dateTime" }
+```