ACCUMULO-2520 GC changes : disallow a delete marker of hdfs://nn/, log a warning about invalid delete, and add test for bad delete markers
ACCUMULO-1945 added help to bin/accumulo

Adding a check for the arg of help within the src/Main class should be sufficient for providing the help argument to bin/accumulo

Signed-off-by: Sean Busbey <busbey@cloudera.com>
Merge branch '1.4.5-SNAPSHOT' into 1.5.2-SNAPSHOT

Conflicts:
	start/src/main/java/org/apache/accumulo/start/Main.java
Merge branch '1.5.2-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	start/src/main/java/org/apache/accumulo/start/Main.java
ACCUMULO-1517 Generate LaTeX appendix for config

Includes improvements to user manual in many areas, where text was too wide for
the page. Improved some Property.java formatting (mainly line length). Update
version number for user manual. Escape many LaTeX reserved characters, such as
tilde. Fix named anchor bug in html output for HTML5.