Update to MongoClientURI javadoc

URI can contain collection name which is not mentioned in javadoc. Fixed.
Merge pull request #116 from ramazanpolat/patch-1

Update to MongoClientURI javadoc, correctly documenting that a URI can additionally contain the collection to connect to.
JAVA-836: Changed logic for logging of up and down servers.  Now the background thread logs on every state change, which will reduce log spamming dramatically.
Suppressing deprecation warning in a test
Added Deprecated annotation to method with @deprecated Javadoc tag
Added test-artifact-compile and renamed testing task
Added missed dependency
Removed test-artifact tasks and added test-nodeps to run on jenkins
Added 'source'=${javac.source} where it's missed
JAVA-847: Replaced !String.isEmpty() with String.length() != 0 to remove Java 6 dependency
Changing HashMap to TreeMap in test so ordering of keys is predictable.
Disabling a test in Java 5 because it relies on platform support for MXBeans.
JAVA-820.  Added support for checking of bad keys within documents contained in a List.
JAVA-837: Allow use of "text" command on non-primaries by adding it the list of commands that obey the requested read preference.
Update Bits.java

Reversed the inequality for detecting whether the byte array is large enough.
Added tests for org.bson.io.Bits class. Fix for JAVA-816.
Made org.bson.io.BitsTest class JDK5 compatible
JAVA-401: Catch and log exception on ensuring indices for GridFS collections.  Exceptions can happen if the MongoClient is a direct connection to a secondary, so this can happen under normal circumstances.
docs(*) add some javadoc to com.mongodb.DB (reworked pull #84)
Updated build to download jar file from new downloads location, for binary compatibility check