update tutorial to latest
update based on matzew feedback
reduce img sizes to avoid redundant download
shrink the size of iOS devices screenshots
added sentences for setting custom payload using the rest-sender api with curl
Merge branch 'pr/353'
update notif msg. to be consistent with the ups-guide
Link to REST API and Node.js Sender example
fix language issues (fail back / to be send)

Conflicts:
	docs/unifiedpush/aerogear-push-ios/unified-push-server.asciidoc
update SimplePush guide
fixed path to PushMessage.png image
Merge branch 'cvasilak_lfryc_fixes'
Adding content for dashboard warning and server logging
Adding jboss-cli notes for logging, as suggested by @jamezp
Merge branch 'pr/352'
Inc. WildFly and edited text
Fixed typo, H2 info, simplified deploy section
Adding stanza for pg_hba.conf configuration
Added pg_hba.conf step for PostgreSQL DB
splitting lines to avoid breaking site layout