Update Spanish Translations
fix lint-warning: Wrong locale name

The Hebrew ("he") language code is rewritten as "iw"
fix lint-warning: Hardcoded text
revised send button in landscape mode
anwser to xmpp: style uris. fixed open conversations from android address book
Merge pull request #499 from betheg/hardcoded_string

fix lint-warning: Hardcoded text
Merge pull request #498 from betheg/locale_folder

fix lint-warning: Wrong locale name
Merge pull request #487 from weiss/add-german-translations

Add missing German translations
Merge pull request #485 from kruks23/translation5

Update Spanish Translations
fixed some lint warnings. thanks @betheg
Merge branch 'development' of github.com:siacs/Conversations into development
added flattr button
fixed link
add false argument to inflate.
Merge pull request #504 from betheg/inflate

add false argument to inflate.
made muc passwords and prefereced encryption method persistant across restarts
new notification service. first draft
more improvments for new notification service
fixed muc invite with <body/>.
notifiy only when necessary