Preferences: split blogs section in wpcom/self-hosted
remove unused strings
fix #772: npe in create account page with a certain timing, when a user create an account and hit back just before completion
fix #773: npe updateblogoptions
Ensure we aren’t inserting a string outside of the length of the content editable string. Fixes #780.
Don’t proceed with downloading external media if the method arguments are null. Most likely the cause of this was that the activity had finished.
Merge pull request #774 from wordpress-mobile/issue/772-npe-new-user

fix #772: npe in create account page with a certain timing
Merge pull request #776 from wordpress-mobile/issue/773-fix-npe-updateblogoptions

fix #773: npe updateblogoptions
Merge pull request #785 from wordpress-mobile/issue/780-post-content-outofindex

Fixes #780 (OutOfIndex).
Merge pull request #786 from wordpress-mobile/issue/782-media-utils-npe

Fixes #782 NPE
Merge pull request #771 from wordpress-mobile/issue/764-preferences-ux

Preferences: split blogs section in wpcom/self-hosted
Merge branch 'develop' into feature/japan-testing

Conflicts:
	src/org/wordpress/android/ui/prefs/PreferencesActivity.java
	src/org/xmlrpc/android/ApiHelper.java