Fixing codestyle

Signed-off-by: Benoit Mortier <benoit.mortier@opensides.be>

Resolve "Security: Insecure Generation of Random Tokens"

See merge request fusiondirectory/fd!301

(cherry picked from commit 3bb68492)

b62266fa  fix(core) Use only random_int for pseudo-random int generation

For PHP<7.0, we fall back on openssl_random_pseudo_bytes from openssl module.

issue #5843

Resolve "Using date modifier not work for unix password expiration"

See merge request fusiondirectory/fd!101

(cherry picked from commit 9d3163f9)

37dba370  feat(template): Add special epoch format for date modifier

Useful for filling shadowExpire with templates, this works by giving
 'epoch' as format in the date modifier.
Result is the number of date since epoch, as is needed in shadowExpire
 field
(Standard format U is number of seconds since epoch, aka timestamp)

issue #5746

issue #5745

There are some left in datepicker.js because of a bug in the sniffer,
 I did not find a way to fix that yet.

issue #5690

Fixes #5358 Fixed ImageAttribute usage in templates. Added special %% string start for template values

Remove the useless trailing whitespaces at the end of this line
Add one whitespace between the colon and the value.

Signed-off-by: Mortier Benoit <benoit.mortier@opensides.be>