Merge from 3.0 local branch

Merge from 3.0 local branch

- [ACR][10/10/2013][Remove]Removing API versioning to support E_OUT_OF_RANGE exception from Parse() and Decode() API in Number classes
- [ACR][01/10/2013][Add|Deprecate]Adding ToInt8() method in Number, Int8, Integer8, Integer, Long, LongLong & Short classes
- [3.0] Modify String::Replace() which shared buffer even when the whole string was replaced
- [3.0][ACR]Modify IteratorT/RandomIteratorT/PairIteratorT to satisfy the reqirements of STL Iterators
- [3.0] String::Contains() seems to block for long time for very long String. Remove needless while loop in Contains().
- [ACR][20/08/2013][Add]Enhance Double::ToString() andFloat::ToString() to set a specific precision

Change-Id: I2e5dd0bc5affc74e4310c61c6f834a2a83630bbd
Signed-off-by: Sunwook Bae <sunwook45.bae@samsung.com>