Add failed test first: spew against a symlink
Fix spew to follow the link and replace the dest

If original path is a symbolic link then resolve it
till it is not a symbolic link before moving temp file
to original path.
perltidy
updated meta files
bump Changes
lines with count longer than file should return only lines in file
v0.026

    [FIXED]

    - Fixed bug where lines() with a count longer than the
      file would return undef for the extra lines.  Now returns
      only the lines in the file if the count is greater than
      the number of lines.
bump Changes
add documentation example for lines()
Implement a digest method

The digest method returns a hexadecimal string digest.  This was an
80/20 optimization in line with the Tiny philosophy to keep things
simple and return values comparable to command line tools and what
people would see on a website with a digest to verify a file.

The default algorithm is 'SHA-256' or Digest module constructors may be
given as arguments.

Those with more specific needs should just use Digest directly.
Add test for digest method for MD5 and SHA-256
create digest test file in temp directory
Add Digest and Digest::SHA prereqs

Perl 5.10.0 is fine, but earlier Perls need versions
that support SHA-256.  With prereqs added, I removed
the skip logic from the digest tests.
update Changes, stopwords and meta files
fix up See Also and contributor mail mapping
bump Changes
Let children() method use optional filter argument

As mentioned in GitHub #38 issue, let children() method
allow optional filter argument as `qr//` or code reference.
If invalid argument is given then children() will be croaked.
I setted code reference received two arguments, the first one
is `$self` and the second one is the name of the child to avoid
some object creation/stringification overhead.  I can't convince
`$self` is really needed or not, but it was always useful in my cases.
Added new tests for various argument of children()

- Regexp argument
- code reference argument
- invalid argument
Use `$/` rathern than `\n` for portability
Child name shoud be put into localized `$_` for coderefs