upgrade tobi spring
using jdbctemplate
unit test update
finish chapter2. test
 - minimize use of applicationcontext
 - practice test example
strategic pattern optimization
upgrade template/callback pattern example
remove final modifier
upgrade context using generic
upgrade accepting generic type
upgrade JdbcTemplate
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	TobiSpringUpgrade/src/main/java/com/tobi/tempcallback/Calculator.java
updating for the exception conversion
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