Moved the CSRF authenticity token to be generated on the form_tag helper
instead of form_for (the latter uses form_tag at the end anyway...).
Added tests too.
[core] Revert complicated handling for 404 fixed by Sinatra 1.4.0
Set use_html_safe => true with slim engine, (now real use safebuffer system)
Merge pull request #1117 from WaYdotNET/slim-safebuffer

Slim now use safebuffer
fixed uninstall function in Rakefile to make :fresh/:uninstall tasks run without errors.
Merge pull request #1118 from lenzcom/master

fixed uninstall function in Rakefile to make :fresh/:uninstall tasks run without errors.
fix #1117
Merge pull request #1119 from WaYdotNET/fixslim

fix #1117
Refactored `button_to` to reuse the `form_tag` helper. Moved it to `form_helpers` to have it on the same namespace (it kind of makes sense for it to be in there) and added some tests to it as well.
Updated Thor dependency
Merge pull request #1115 from padrino/moved-csrf-token-to-form_tag-helper

Moved the CSRF authenticity token to be generated on the form_tag helper
Http router 0.11
Merge branch 'master' of github.com:padrino/padrino-framework

* 'master' of github.com:padrino/padrino-framework:
  Refactored `button_to` to reuse the `form_tag` helper. Moved it to `form_helpers` to have it on the same namespace (it kind of makes sense for it to be in there) and added some tests to it as well.
  Moved the CSRF authenticity token to be generated on the form_tag helper instead of form_for (the latter uses form_tag at the end anyway...). Added tests too.
last re-fix slim ..sorry #1117
Merge pull request #1122 from WaYdotNET/refix-slim

last re-fix slim ..sorry #1117
Sinatra 1.4 was released, lock it to that version
Merge pull request #1124 from padrino/sinatra-1.4

Sinatra 1.4 was released, lock it to that version
Fix issue on 1.8.7
Updated Sinatra 1.4.1
Cleans up and merges #1090 (Thanks @AtoxIO)