make PDOStatementWrapper return number of updated rows on INSERT, UPDATE or DELETE queries, introduces isManipulation() to guess type of query
fix numRows usage in user_ldap

Conflicts:
	apps/user_ldap/lib/access.php
	apps/user_ldap/lib/helper.php
fix numRows usage in core lib
fix numRows usage in files_encryption
use assertEquals number of rows in db tests
one if less
manuall calculate unix_timestamp for oracle
add missing backticks
stable5 does not have execute audited yet
check item id is set
fix type of numeric columns
for oracle use BITAND() instead of & in sharing permissions sql
Oracle doesn't know & as bitwise AND

Conflicts:
	lib/public/share.php
add correct check if table exists for oracle
fix insertIfNotExist return value, update doc and corresponding test
Merge pull request #3940 from owncloud/stable5_oracle_testsuite_fixes

Stable5 oracle testsuite fixes