Do not display the "from" section for the first exception trace entry

[morozov]

According to http://php.net/manual/en/exception.gettrace.php#107563, the first entry doesn't contain the file/line keys since they are recorded in the exception object itself.

Additionally, some changes to the output formatting have been made:

1. The trace entries are counted in a human-friendly way starting with "1" (like Xdebug does for example).
2. The file name and line number in the "from" section are delimited by a colon without the space. This format is better IDE/editor friendly and helps easier navigation (e.g. Ctrl+N in PhpStorm, copy-paste the file:line combination).

With this patch applied, the output looks like the following:

↪ phpbrew --debug install 7.1.99
Exception: Version 7.1.99 not found.
Thrown from /home/morozov/Projects/phpbrew/src/PhpBrew/Command/InstallCommand.php at line 217:

  214            $version = preg_replace('/^php-/', '', $version);
  215            $versionInfo = $releaseList->getVersion($version);
  216            if (!$versionInfo) {
> 217                throw new \Exception("Version $version not found.");
  218            }
  219            $version = $versionInfo['version'];
  220
  221            $distUrlPolicy = new DistributionUrlPolicy();

Trace:

    1) PhpBrew\Command\InstallCommand->execute('7.1.99')

    2) call_user_func_array([PhpBrew\Command\InstallCommand, 'execute'], ['7.1.99'])
        from /home/morozov/Projects/phpbrew/vendor/corneltek/cliframework/src/CommandBase.php:846

    3) CLIFramework\CommandBase->executeWrapper(['7.1.99'])
        from /home/morozov/Projects/phpbrew/vendor/corneltek/cliframework/src/Application.php:398

    4) CLIFramework\Application->run(['bin/phpbrew', '--debug', 'install', '7.1.99'])
        from /home/morozov/Projects/phpbrew/src/PhpBrew/Console.php:114

    5) PhpBrew\Console->runWithTry(['bin/phpbrew', '--debug', 'install', '7.1.99'])
        from /home/morozov/Projects/phpbrew/bin/phpbrew:23

Fixes #108.

[c9s]

@morozov travis ci is failed, could you take a look?

[morozov]

@c9s there are issues with dependencies which I'm not going to fix:

1. This package depends on corneltek/getoptionkit: ^2 but Enable custom validator on Option GetOptionKit#50 breaks compatibility with PHP 5.3 while still declares it supported.
2. Restricting the version constraint for corneltek/getoptionkit to < 2.5.1 when the above issue was introduced causes:

Fatal error: Interface 'GetOptionKit\OptionPrinter\OptionPrinterInterface' not found in src/OptionPrinter.php on line 18

[c9s]

Oh that’s too bad

[c9s]

Let me merge this