add timecop_console_layout helper

helper method builds the basic layout needed to control your app server
time, method can also take in a block of html which is then inserted at
the top of the timecop console.
move the timecop console layout to view
fix up timecop_console_layout after rebase
refactor hour, min assignments
make call to console_layout partial more explicit
add more specs to time_travel_to
clean up configs

sprokets/railtie add to include assets:precompile rake tasks
add debug support for precompiled assets
update Bundler config per rails 4 upgrade guide
clean up the timecop-console layout

for now returned the layout to be without any time_travel_to buttons b/c
so that the users can add there own buttons and not clutter the console
require sprockets in dummy app development env

running specs on the dummy app resulted in a failing to launch the test
environment with the sprockets library required a quick solution was to
remove it from the test environment
update README.rdoc
Merge branch 'features/layout_console_helper'