add namespace option to form builder
whitespace cleanup
Fixed :grouped_options of select_tag.

Added test cases for #1294.
Merge pull request #1337 from namusyaka/fix_grouped_options_of_select

don't use block for content_tag in #select_tag
cleanup someone's sickly puts
fix bundle for ruby 1.8.7. Before allowing AS 4, we MUST branch away with statement about dropping 1.8.7
fix #751, introduce #absolute_url for generating absolute urls
Merge pull request #1338 from padrino/absolute_url

fix #751, introduce #absolute_url for generating absolute urls
refactor padrino-cache, closes #827
Merge pull request #1332 from sshaw/form_builder_namespace

introduce :namespace option to abstract form builder, closes #1327
Fix module name including dashes in project generator
Merge pull request #1341 from tyabe/fix_module_name

Fix module name including dashes in project generator, closes #1242
Adds back 1.8.7 to travis
really fix #827, add @dariocravero's test
Fixed a comment mistake in output_helpers.rb.
Merge pull request #1340 from padrino/cleanup-cache

refactor padrino-cache, closes #827
Merge pull request #1342 from namusyaka/fixed_comment_mistake

fix a comment
introduce case insensitive authentication by email, closes #1261

Supported ORMS: activerecord, datamapper, minirecord, mongoid, mongomapper, sequel
ORMs not supporting case insensitive search: ohm
Cryptic ORMS: couchrest
assume value from fragment cache html_safe, fixes #1223
Merge pull request #1344 from padrino/mixed-emails

introduce case insensitive authentication by email, closes #1261