jtauber / pyuca / 100

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Pull #18

travis-ci

<a href="https://github.com/jtauber/pyuca/commit/<a class=hub.com/jtauber/pyuca/commit/<a class="double-link" href="https://git"><a class=hub.com/jtauber/pyuca/commit/94895dfe025b1e7585651200781f293d62b2a520">94895dfe0<a href="https://github.com/jtauber/pyuca/commit/94895dfe025b1e7585651200781f293d62b2a520">&lt;a href=&quot;https://github.com/jtauber/pyuca/commit/94895dfe025b1e7585651200781f293d62b2a520&quot;&gt;&amp;quot;&amp;gt;plant support for strength setting

Extracted - with minor amendments in tests - from `settings` branch by
James Tauber:
* Code:
  * Commit [&amp;quot;support for strength setting&amp;quot;](https://github.com/jtauber/pyuca/commit/&lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/jtauber/pyuca/commit/&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/jtauber/pyuca/commit/fb87e926f799f4a793286f14a46841e3bd0597b9&quot;&gt;fb87e926f&lt;/a&gt;&quot;&gt;fb87e926f&lt;/a&gt;&lt;a href=&quot;https://github.com/jtauber/pyuca/commit/94895dfe025b1e7585651200781f293d62b2a520">).
* Documentation:
  * Commit [&quot;initial settings documentation&quot;](https://github.com/jtauber/pyuca/commit/</a><a class="double-link" href="https://github.com/jtauber/pyuca/commit/<a class="double-link" href="https://github.com/jtauber/pyuca/commit/8bd6a8c6e067f48b17f3a393c8ac57b1e19ac0d0">8bd6a8c6e</a>">8bd6a8c6e</a><a href="https://github.com/jtauber/pyuca/commit/94895dfe025b1e7585651200781f293d62b2a520">).

----

Wrt the amended tests:

According to [the algorithm for computing the sort
key](https://www.unicode.org/reports/tr10/tr10-36.html#Step_3), the
sort key does not have to end with a level separator.  See also the
following examples:
* https://www.unicode.org/reports/tr10/tr10-36.html#Array_To_Sort_Key_Table
* https://www.unicode.org/reports/tr10/tr10-36.html#Comparison_Of_Sort_Keys_Table

However [the conformance
tests](https://www.unicode.org/Public/UCA/10.0.0/CollationTest.html)
include in (non-normative) comments &quot;a representation of the sort key"
always ending with "|]" where the vertical bar stands for "the ZERO
separator".

Do not append a final unnecessary level separator.

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