Fixed misleading error message when providing a string in Yaf_Application construction

see https://github.com/laruence/php-yaf/issues/55
added some TODOs.. fixed typos and a possible bug fix

1.    fixed a typo in a final class's protected property, so there can not be any compatibility damage {yaf_route_map.h}
2.    misc typo fixes in documentation
3.    fix a possible bug in yaf_config_simple.c
4.    added TODOs for Yaf_Response methods that needs implementation
fixed a php 5.2 bug. no support for Nowdoc...
5.2 support
5.2 support#2
add Yaf_Response_Abstract:: setHeader()
optimize code and add Yaf_Response_Abstract:: setAllHeaders()、Yaf_Response_Abstract:: getHeader()
optimize code and add Yaf_Response_Abstract:: clearHeaders()
output headers and response_code where Yaf_Response_Http::response() is called
move setAllHeaders、clearHeaders、getHeader、setHeader to yaf_response_http.c from yaf_response.c
replace one line comments with block comments
Merge pull request #57 from elad-yosifon/master

fix a possible bug in yaf_config_simple.c
PECL requires PHP_EXTNAME_VERSION
fix some bug and make code better
添加Yaf_Response_Http::resopnse()方法覆盖Yaf_Response_Abstrace::resopnse()，并优化代码
Fixed issue #69
Merge branch 'master' of github.com:laruence/php-yaf
Merge branch 'dev' of https://github.com/wenjun1055/php-yaf

Conflicts:
	tests/070.phpt
	yaf_response.c
Merge pull request #2 from laruence/master

merge with laruence
Merge branch 'master' into module_service_dao

Conflicts:
	tests/070.phpt