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.

Jump to the panel_aliases anchor (top) to directly edit the selected alias

delay an ajax call to see if this fixes the problem of the loading indicator not going away after showing the user a panel after login

Change owner of spamassassin directory from mail to spampd, closes #231