Starting with v1.8 osTicket will require mysqli extension.

This patch allows for the specification of a socket in the database hostname
field, such as localhost:/path/to/mysql.sock

line 199: in case of custom upgrade streams, variable $signature contains the last value from the foreach cycle at line 130, not the core schema signature!

line 209: if we do not insert schema signatures for each custom stream, after install osTicket thinks it needs an upgrade and gets stuck (see function isUpgradePending() in class.ticket)

Allow the php source analyzer scan for $this in static functions as well as
properly handle the exception variable inside catch blocks.

And freshen up the upgrading guide

Also, if any non-shipped .htaccess files exist, don't clean those either

Fixes #60

Overhaul the popup tips from the installer to make them translatable and
work toward popovers for all the admin and staff panel settings.

Allows the deploy script to remove files in the target that are not preset
in the current repository. This patch assumes pure stock osTicket
deployments -or- that the files deployed in the target are also present in
the local repository.

When the include path is written in bootstrap.php, ensure that extra slashes
are not accidentally added

Use a PHP setup which uses the built-in PHP tokenizer to parse and traverse
PHP scripts to determine (possible) access to uninitialized variables

Allow for type and encoding specification of the message body and better
describe the integration with custom form fields.

Fixes #20

Validate port during installation

Add help information about the non-standard port number to the popup tips in
the install screen.

Support MySQL 'localhost' connections using a non-standard port number.
Ordinarily, MySQL will ignore the port setting on *nix systems if the host
is specified as 'localhost'

Implements/Fixes #769