Code Formatting

Reformatted random formatting in many of the files:
  + mixed tabs and spaces
  + mixed indentation lengths

I formatted all of the .java files in src/main/java to use what seemed
to be the most common format of using spaces with an indent size of 2.

Also removed an uneeded variable here and there.
JmeterSummarizerParser - Cleanup

+ Added try-finally's to ensure closing of Scanner objects
+ Removed unnecessary IOException in catch-clause (unreachable clause)
+ Removed unneccessary import
Resolved Deprecation Warning

Updated instantiation of StreamTaskListener with System.err to use the
fromStderr() constructor in PerformanceBuildAction.java
PerformanceProjectAction - cleanup

+ Added @SuppressWarnings for serialVersionUID
+ Removed unused local variable (range)
+ Added type-parameters to return type of getTrendReportData
+ Removed private default-constructor of Range class
PerformancePublisher - cleanup

+ Removed unused local variables
+ Resolved warning with static-member access (this -> PerformancePublisher)
Merge pull request #27 from JohnMurray/clean-up

Thanks
test case for reported bug #JENKINS-22011
Fixing xml file creation for relative comparison

Summary xml file would be created in case the previous build is null
for relative comparison.
Fixed xml file creation bug in Error % comparison
Merge pull request #29 from palvinds/Perf_Plugin

Thanks for contributing
Fix doRespondingTimeGraphPerTestCaseMode to work with averages instead of max (as noted in https://issues.jenkins-ci.org/browse/JENKINS-21786)
Fix JMeterSummarizerParser breaking when parsed log file contains lines with plus (+) that are not Summariser log entries.
fix case on test file name
fix case on test file name
Add JMeter Throughput Report (like copy of JMeterParser)
Clean up
Add throughput view mode
Show throughput chart on dashboard
Add real throughput chart
Add support calculate of throughput for zero data or slow requests