add InputStream, skip unicode BOM marks
#	modified:   GuessCodepage/AndroidManifest.xml
#	modified:   GuessCodepage/src/com/example/guesscodepage/GuessCodepageActivity.java
#	modified:   GuessCodepage/src/com/example/utils/GuessCodepage.java
#	new file:   GuessCodepage/src/com/example/utils/HttpUtils.java
#	new file:   GuessCodepage/src/com/example/utils/UnicodeBufferedInputStream.java
#	new file:   GuessCodepage/src/com/example/utils/UnicodeInputStream.java
#	new file:   GuessCodepage/src/com/example/utils/UnicodeReader.java