use status only for master branch
optimize ephp_util and date function
add var_dump function and update doc
remove support for R15
add support for var_dump in doc
fix var_dump according to the PHP spec
fix return type for print_r in ephp_func_vars module
do easier the project building
ignore ephp for git
add emu args in rebar
better to read the code
remove exml from escript
Merge branch 'master' into oop

Conflicts:
	src/ephp_parser.peg
let spaces between class blocks