DashNet extension update 1.2

Just update DashNet as some users requested, here the changelog:

• Added optionally WiFi signal strength dBm in the main widget (be careful it could use more battery, not in my test, and cause some blinking in the widget)
• Added optionally the option to hide DashNet from main widget if in WiFi

About the WiFi signal strength I tested for some week and I did not notice a drain on the battery, I noted on my nexus7 (WiFi only) a fairly frequent blinking in DashClock, that doesn't happened on my Galaxy Nexus.....so take it as it is, I'm here to listen suggestions and comments.