Fix testing bugs, remove AddressBook from path

[shirsho-12]

closes #112

[codecov]

Codecov Report

Patch coverage: 43.60% and project coverage change: -24.04 ⚠️

Comparison is base (c670198) 71.52% compared to head (a92f812) 47.49%.

Additional details and impacted files

@@              Coverage Diff              @@
##             master     #211       +/-   ##
=============================================
- Coverage     71.52%   47.49%   -24.04%     
- Complexity      428      491       +63     
=============================================
  Files            75      109       +34     
  Lines          1331     2472     +1141     
  Branches        138      262      +124     
=============================================
+ Hits            952     1174      +222     
- Misses          330     1193      +863     
- Partials         49      105       +56     

Impacted Files	Coverage Δ
src/main/java/fasttrack/AppParameters.java	75.00% <ø> (ø)
src/main/java/fasttrack/Main.java	0.00% <ø> (ø)
src/main/java/fasttrack/MainApp.java	0.00% <0.00%> (ø)
src/main/java/fasttrack/commons/core/Config.java	68.18% <ø> (ø)
.../main/java/fasttrack/commons/core/GuiSettings.java	61.53% <ø> (ø)
...c/main/java/fasttrack/commons/core/LogsCenter.java	78.37% <ø> (ø)
src/main/java/fasttrack/commons/core/Messages.java	0.00% <0.00%> (ø)
src/main/java/fasttrack/commons/core/Version.java	82.50% <ø> (ø)
.../main/java/fasttrack/commons/core/index/Index.java	100.00% <ø> (ø)
...ck/commons/exceptions/DataConversionException.java	100.00% <ø> (ø)
... and 99 more

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[nicleejy]

From the changes it looks like alot of our code is not covered by tests. LGTM overall

[gitsac]

Good work on the refactoring and flagging out our lagging testcases, appears we might need to put in more work on the tests. LGTM.