docs: some twitter/commons cleanup; pingpong->hello

There were some mentions of twitter/commons that became pants
There were some "../.." that became ".."

Use examples/hello as sample code instead of examples/pingpong. Pingpong's a great program to show off twitter/commons; it's not so great for a simple Pants example

Testing Done:
Doc generation now has many fewer failed-include warnings, yay

Reviewed at https://rbcommons.com/s/twitter/r/191/
Get rid of two deprecated (and actually broken) flags.
Fixes to zinc analysis manipulation, and comprehensive tests for it.

- A unit test for parse/write/split/merge.
- Equality and diffing logic for analyses.
- Fix split and merge bugs found by the test.
- Includes a ~350k tarball of anonymized text analysis files, used as test data.
Fix Scala REPL issues:

- Unicode literal issues.
- Slowness due to workunit output capturing.
- Rearranged the imports correctly.
- Removed an unneeded import.
An analysis anonymizer utility.

Useful for creating test data from real analysis files without leaking
proprietary names of things.
Fix code review from john round one

Conflicts:
	src/python/pants/tasks/jar_create.py
	src/python/pants/tasks/jar_publish.py
Round 2 of better testing support for create_libraries

Conflicts:
	tests/python/pants_test/tasks/test_jar_create.py
	tests/python/twitter/pants/base_build_root_test.py
	tests/python/twitter/pants/tasks/BUILD
	tests/python/twitter/pants/tasks/test_jar_publish.py
More modular tests and fixing of tests

Conflicts:
	tests/python/twitter/pants/base_build_root_test.py
	tests/python/twitter/pants/tasks/test_jar_publish.py
Review comment set 2

Conflicts:
	src/python/pants/targets/scala_library.py
	tests/python/pants_test/tasks/test_jar_create.py
Remove the Target classes extra logic

Conflicts:
	src/python/pants/tasks/jar_create.py
Final Changes after reverting the changes for enabling publishing. They have been ported to rb #116

Conflicts:
	src/python/pants/tasks/jar_create.py
	src/python/pants/tasks/jvm_compile/jvm_dependency_analyzer.py
	src/scala/com/twitter/common/example/BUILD
Fix white spaces

Conflicts:
	src/scala/com/twitter/common/example/BUILD
Adding the missing examples
Example fo scala-java lib with resources

Conflicts:
	src/scala/com/twitter/common/example/BUILD
Code review comments

Conflicts:
	src/scala/com/twitter/common/example/BUILD
	tests/python/pants_test/tasks/test_jar_create.py
	tests/python/twitter/pants/targets/test_scala_library.py
Remove resources example
Checkstyle line
Adding java sources
Fix paths till now
Fix the BUILD_ROOT vs build_root partial replace cherry-pciked from twitter-commons. Fix the missed the cherry-pciked file