beecp changes

Changes in 4.0.4

1: add a new util method: CommonUtil.isNotBlank
2:[beecp]rename two methods related with pool lock 
    getElapsedTimeSinceCreationLock() ---> getPoolLockHoldTime()
    interruptThreadsOnCreationLock()   ---> interruptOnPoolLock()
3:[beecp] support returning a array of interrupted threads from pool lock
4:[beecp]rename connection eviction predicate class.
     SQLExceptionPredication ---> BeeConnectionPredicate
5:[beecp]some optimization on source code 
6:[beecp]add toString() method to jdbc proxy objects


Changes in 4.0.3

* upgrade slf4j-api to 2.0.6
* allow to assign 0 on connectTimeout
* rename a config item(jdbcLinkInfDecoderClassName --> jdbcLinkInfoDecoderClassName)
* fix exception on inner copying configPrintExclusionList
* fix null point exception when load invalid properites file
* enhance interruption on pool lock and pool semaphore(two new extension classes in util pacakge)


Changes in 4.0.2

* [beecp]support propeties config loading from class path
* [beecp]remove some unnecessary check on number config items
* [beecp]fix IndexOutOfBoundsException on remove error code
* [beecp]add a new config item[configPrintExclusionList]
* [beecp]rename a exception class[PoolInitializedException --> PoolInitializeFailedException]
* [beecp]add a new method to BeeObjectSourceConfig[getFactoryProperty]
* [beecp]rename three config items
    validTestSql ---> aliveTestSql
    validTestTimeout ---> aliveTestTimeout
    validAssumeTime  ----> aliveAssumeTime


Changes in 4.0.1 

* [beecp]enhance interruption handling on conneciton creation 
* [beecp]rename a pool inner fiel and add volatile type to this field[startTimeAtLockedSuccess ----> pooledArrayLockedTimePoint]
* [beecp]fix a NullPointException in method BeeDataSource.getLogWriter

Changes in 4.0.0

* change project LICENSE from LGPL2.1 to Apache2.0
* change top level folder from cn to org.stone
* add connection eviction predication to support customization on SQLException check
* add a operation method which can be used to try interrupt blocking on Driver.getConencton/DataSource.getConencton
* rename a config item: createTimeout ---> connctTimeout,which is equivalent to loginTimeout field in DriverManager