added .3gp to video media type
Merge branch 'master' of github.com:frostwire/frostwire-android
Deep override of ProtocolFactory > ReceivingSearch.createServiceTypeMessages() to avoid a strange class cast exception being reported on that method.
Updated MediaType for Documents
Avoids crash caused by AdMobSDK and WebView's cache being null.
Should avoid an OutOfMemoryError caused by the formatter.

java.lang.OutOfMemoryError: (Heap Size=49187KB, Allocated=47881KB)
at java.lang.AbstractStringBuilder.setLength(AbstractStringBuilder.java:567)
at java.lang.StringBuilder.setLength(StringBuilder.java:44)
at com.frostwire.android.gui.activities.MediaPlayerActivity.stringForTime(MediaPlayerActivity.java:644)

This error was exploding when setLength was trying to allocate a huge array.
Calling .setLength(0) is not enough by looking at its code, however calling trimToSize
will reduce the backing array since we've set its count attribute to zero.
Typo on preferences s/Conectivity/Connectivity/ - Thanks Daniel Marchesani
fixed entry for connectivity in spanish and translated it for french
Merge branch 'master' into slidemenu2