update crate-theme to 0.0.15 and cleanup picked versions

Conflicts:
	CHANGES.txt
fixed collecting unassigned shards.
Merge pull request #687 from crate/l/hotfix-sys-shards-unassigned

fixed collecting unassigned shards.
do not create (blob) tables with num_shards < 1
Merge pull request #688 from crate/l/hotfix-clustered-into-0-shards

do not create (blob) tables with num_shards < 1
updated crate-admin to 0.5.2
Merge pull request #689 from crate/l/upgrade-admin-ui

updated crate-admin to 0.5.2
prepare release 0.35.5
Merge remote-tracking branch 'origin/0.35'

Conflicts:
	CHANGES.txt
	core/src/main/java/io/crate/Version.java
add support for column selection in COPY TO
use sourceLookup for copy to with columns
sql-parser: add columnList to COPY FROM