is #254 plus a longer comment, fixes #243

when installing a ssl cert for the primary hostname, dns, postfix, and dovecot all need to be updated/kicked

see https://discourse.mailinabox.email/t/there-is-a-problem-with-the-ssl-certificate/144/4

fix the animated scroll target on the ssl panel to scroll so that the header is actually visible and not covered by the nav bar

add a tool for me to see how many installations are happening by scanning for accesses to bootstrap.sh

see #244

Conflicts:
	management/templates/external-dns.html

also give more space for the login settings and less space to the tips

* also fixes the footer alignment to be within a container rather than a container-fluid
* this changed the width of the login form slightly, so am cleaning that up too

see #244

see #244

Add shebangs to enable running dkim and webmail scripts separately

Updating existing installed was broken. The new roundcube would be copied into a subdirectory of /usr/local/lib/roundcubemail.

Also fixes the image thumbnail issue raised on the forum (https://discourse.mailinabox.email/t/roundcube-thumbnails-not-showing/136), see http://trac.roundcube.net/wiki/Changelog.

bring the max outgoing mail size via webmail and z-push in line with the limit set in postfix: 128 MB

The limit was previously the nginx default (2MB?).

fixes #236

* `git fetch` wasn't done right for shallow clones
* the test for whether mailinabox has already been cloned wasn't looking at the right directory if the script was not run from $HOME

SSLv3 is already disabled in Postfix (45e93f7d) and Nginx (51dd2ed7).

retain backups only for 3 days; beyond that the user is responsible for copying files off of the machine

see #231, #201, b26abc94, 7ca54a2b, dfe0a9f1

see #231, #201, b26abc94.

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