Merge pull request #91 from CedricCabessa/branches/rudder/android_support_2.5

skipidentify for android
Bug Fix typo in xml tag name for inventory
run-inventory on android

Android version of run-inventory is available in the cfengine android repo
The behavior is supposed to be the same even if some arguments are ignored (for now)
Android support for downloadFile

Add a rudder_curl var to factorise code
android support

add android when it just works