Improved MOST loading speed by 700%

Log4j silenced

Log4j is used by SBMLReader, in GraphicalInterface.java near "progressBar methods"
Removed 200+ warnings

Removed LocalConfig static methods and fields, maintained singleton pattern
Removed unused imports and methods to silence more warnings
added "@Suppresswarnings" to silence more warnings
Set access modifiers to 'static' to silence more warnings
removed unused variables to silence warnings
Revert "removed unused variables to silence warnings"

This reverts commit bf7a8584f6eda16cfde1f4645796cb637158c3d5.
resolved issues caused by commit bf7a8584f6eda16cfde1f4645796cb637158c3d5