Online update implementation based on Mozilla's MAR format + update mechanism

Parts of this code are copied from the mozilla repository, and adapted to
LibreOffice needs:

firefox/modules/libmar -> onlineupdate/source/libmar
firefox/toolkit/mozapps/update -> onlineupdate/source/update
/?id=a2ef65b09da20aa1d0c15b883a58056df2dbad6b'/>
<id>a2ef65b09da20aa1d0c15b883a58056df2dbad6b</id>
<content type='text'>
Change-Id: I0e56430afa65b6b5826d56212ac501c0244fce9b
Reviewed-on: https://gerrit.libreoffice.org/47145
Tested-by: Jenkins &lt;ci@libreoffice.org&gt;
Reviewed-by: Julien Nabet &lt;serval2412@yahoo.fr&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change-Id: I0e56430afa65b6b5826d56212ac501c0244fce9b
Reviewed-on: https://gerrit.libreoffice.org/47145
Tested-by: Jenkins &lt;ci@libreoffice.org&gt;
Reviewed-by: Julien Nabet &lt;serval2412@yahoo.fr&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Clean up xsl files</title>
<updated>2017-09-20T14:11:23+00:00</updated>
<author>
<name>Samuel Mehrbrodt</name>
<email>Samuel.Mehrbrodt@cib.de</email>
</author>
<published>2017-08-11T07:57:55+00:00</published>
<link rel='alternate' type='text/html' href='https://go.suokunlong.cn:88/cgit/lo/core/commit/?id=28dff3780f9074f585bd626e2f06c94124ef4910'/>
<id>28dff3780f9074f585bd626e2f06c94124ef4910</id>
<content type='text'>
* Remove trailing spaces
* Use 4 spaces for indentation everywhere

See discussion at https://lists.freedesktop.org/archives/libreoffice/2017-September/078433.html

Change-Id: I0bb9a0b9b0502cdf0870529cea37ee9c4d1ffdf4
Reviewed-on: https://gerrit.libreoffice.org/41009
Reviewed-by: Samuel Mehrbrodt &lt;Samuel.Mehrbrodt@cib.de&gt;
Tested-by: Samuel Mehrbrodt &lt;Samuel.Mehrbrodt@cib.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* Remove trailing spaces
* Use 4 spaces for indentation everywhere

See discussion at https://lists.freedesktop.org/archives/libreoffice/2017-September/078433.html

Change-Id: I0bb9a0b9b0502cdf0870529cea37ee9c4d1ffdf4
Reviewed-on: https://gerrit.libreoffice.org/41009
Reviewed-by: Samuel Mehrbrodt &lt;Samuel.Mehrbrodt@cib.de&gt;
Tested-by: Samuel Mehrbrodt &lt;Samuel.Mehrbrodt@cib.de&gt;
</pre>
</div>
</content>
</entry>