Add composer config
Normalize line endings from crlf to lf
OskarStark: Doc fix - change expiry time to int
Add hint if sqlite3 database is not writeable
SoftwareAndOutsourcing: Fixed issue regarding database storage and math captcha

When using a database and a mathematical captcha, the audio file would break.

dapphp: Improve database error handling, add example database options to securimage_play.php
wilkor: Add font_ration variable to determine size of font
Merge branch 'master' of https://github.com/atkrad/securimage
Update composer.json
Add option to skip checking of database tables during connection
Add .htaccess file to audio directory to deny access.
Replace English audio with files containing no silence at beginning and end.
Use SoX to add effects to captcha audio.
For systems with SoX audio processor installed, add ability to use SoX to add dynamic effects to audio to make it more difficult to solve for bots/neural networks.
Increase default maximum sound gap between letters in audio captchas.
Add option to ignore chunk sizes for wav files containing bogus chunk sizes (i.e. those stremed from SoX where sizes were unknown when WAV header is generated).
Add simple volume filter to attenuate or amplify audio signal.
Remove commented exceptions.
Add getTimeToSolve() method which returns the number of seconds elapsed from creating the captcha to when solving it was attempted.
Update example form to show how to access it.
Fix reloadCaptcha() call to use jquery.prop()
Add setNamespace() method to securimage and accept namespace url param in securimage_show.php and securimage_play.php
Add Securimage::getCaptchaHtml() method for generating HTML code for captcha image and input
Update example form to use getCaptchaHtml()
Add additional check for starting session (PHP >= 5.4) in case a previous session was started and closed.
Release version 3.5.2