CTAN update: l3kernel + l3packages + l3experimental

[CTAN Announcements]

The LaTeX3 Project submitted an update to the

                l3kernel + l3packages + l3experimental

package.

Version number: 2017-09-18
License type: lppl1.3c

Summary description: LaTeX3 programming conventions

Announcement text:
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- Rename \box_use_clear:N to \box_use_drop:N as this command has
  non-standard grouping behaviour
- New \inteval command in xfp
- New \c_catcode_active_space_tl
- Fix bug with color code when \current at color is not a simple
  string
- Fix behaviour of \sys_rand_seed: in engines without the
  underlying random number primitives
- Allow only integer powers for negative bases in floating point
  expressions
- Various documentation improvements

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The package's Catalogue entry can be viewed at
   http://www.ctan.org/pkg/l3kernel

The package's files themselves can be inspected at
   http://mirror.ctan.org/macros/latex/contrib/l3kernel

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   Thanks for the upload.

     For the CTAN Team
    Erik Braun

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