Update: Changed KernelManager for easy class extension

[CoreRasurae]

Previous KernelManager implementation defined a default initialization in its constructor which called a very likely method for being overriden, namely createDefaultPreferences(). This was causing difficulties when extending KernelManager with another class that intended to redefine createDefaultPreferences() method based on non-static values passed through the redefined constructor of the derived class. What happens is that upon calling the derived class constructor it would call the super class default constructor which would call the overriden createDefaultPreferences() method even before the non-static class fields having been initialized from the new class constructor parameters. This could potential cause exceptions, but would also make createDefaultPreferences() to be called before time.

[freemo]

@CoreRasurae Technically since this isnt a bug fix it should bump the version to 1.8.0

[CoreRasurae]

@freemo Ok, I'll change that

[codecov-io]

Codecov Report

Merging #106 into master will increase coverage by 5.71%. The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #106      +/-   ##
============================================
+ Coverage     47.06%   52.78%   +5.71%     
- Complexity      897     1088     +191     
============================================
  Files            58       58              
  Lines          9739     9743       +4     
  Branches       1589     1589              
============================================
+ Hits           4584     5143     +559     
+ Misses         4692     4085     -607     
- Partials        463      515      +52

[CoreRasurae]

@freemo Done!

[freemo]

@CoreRasurae Thanks merged