Fix link navigation regression

Change-Id: Icc4bd39812e6dd2236496a08d124cfcef4088f12
lastmodifiedby is just missing sometimes :P :)

Change-Id: I65161230e68c913697284bd3cb4d8aa75b75ef28
moar exceptions

Change-Id: I0294d4e4d8e7efbe64b57c5657cc2b397930bab2
Fix saving articles with anon lastmodifiedby

We can't save an NSNull in a property list, so just don't save it if anon.
Also some related little fixlets.

Change-Id: Ic373c0f295406dfabd6ba88d776aa0e425f01f33
workaround for unfinished thumbs on history list

Change-Id: Id052300806e5f3615c7ae87316557ad92db234d1
hide zee loading indicator on article load fail

Change-Id: I75d585c3f0672367ac5ccd8f76ae4cdf538d1dae
fix order of operations on new install

was loading defaults through the session title in the url cache setup
move that to after the defaults setup

Change-Id: Ibe1f35f67eca6b9f3d572d31b3fe3f0d19b2799e
NSString contains: is new in ios 8 :P

Change-Id: I317d971fe0bd5b950fc69a34376ab2f68e48f536
Don't explode in cache when something loads off-upload files

Was dying in article image handling when the url cache picked up
an "image" file on bits for EventLogging

Change-Id: Ida437295dac2b4ac5a5d7fdf72e27ab72947c6e9
Fix saving to saved pages list

Change-Id: I642dd43a3b218e73f67df7451134bb20f4af50c9