add runtime_info model
show runtime_info and compile_info in source
add cinfo and rinfo in solution controller
flash_message add message list support
add recaptcha support
add local captcha support
fix captcha route for unknown Kohana bug
change config sample note
remove old redirect
Revert "fix captcha route for unknown Kohana bug"

This reverts commit de6cd7702d0f3ddc2bbfa08c1fba8e451fc42d4b.
disable damn mod_negotiation
Merge pull request #14 from dotkrnl/captcha

fix captcha route for Apache feature
fix remove replay link is wrong
replace message with flash_message
fix save new contest, news, problems

cause the wrong handle of request
fix echo inside echo bug
Merge remote-tracking branch 'upstream/master' into replybug
fix mistake about save mews, refactor
Merge pull request #15 from dotkrnl/replybug

fix echo inside e::url
clean views