protect against null
first on binary
Update README.md
adding jacoco
update test
assertJ version
final class for utility class
binary work on find
make binary works
resolve jongo bug for saving id as string
rename function
ignore for now
correctly handle DBRef
Merge branch 'master' into binary

Conflicts:
	README.md
	src/main/java/com/github/fakemongo/impl/ExpressionParser.java
	src/main/java/com/github/fakemongo/impl/Util.java
	src/main/java/com/mongodb/FongoDBCollection.java
	src/test/java/com/github/fakemongo/impl/ExpressionParserTest.java
Merge branch 'master' into binary
Merge remote-tracking branch 'twillouer/binary'