[REQUEST] Theme selection

[safeershahul]

FIX : Default/Classic installs the Sandstone theme and not the default one as shown here

FIX : Deprecated themes in the Wiki

REQUEST : Incorporate more themes from bootswatch like Solar and Cosmo

[cydrobolt]

If you would like, you can submit a PR to setup.blade.php to add these themes. Let me know if you need any assistance.

[overint]

PR created #373

[overint]

@cydrobolt This can be closed now.