new features: "dev.xxx" property name & local ip address placeholder

How about these features?

## 1. dev.xxx : Overwrite property when development & test deploy type.
If you want to set different value depending on deploy type, add `dev.` prefix to property name.

    <property name="ti.facebook.appid">FACEBOOK_APP_ID_FOR_PRODUCT</property>
    <property name="dev.ti.facebook.appid">FACEBOOK_APP_ID_FOR_DEVELOPMENT</property>


## 2. Local ip address placeholder
If property value contain `__IP_ADDRESS__` string, it will be replace with local ip address (ex. 192.168.0.2)

    <property name="dev.acs-service-baseurl-slimer">http://__IP_ADDRESS__:8080</property>
    
This treats only external IPv4 ip address. When you have many external IPv4 ip addresses, [ipselector](https://github.com/yomybaby/ipselector) prompt will ask you to select one.

![ipselector prompt](http://cl.ly/image/3W3i2z1F2X1V/bogoyo_—_node_—_⌘2.png)