Added endianness API, improved getMiosixVersion(), improved docs

...rch/arm7_lpc2000/common/interfaces-impl/endianness_impl.h

...h/cortexM3_stm32/common/interfaces-impl/endianness_impl.h

...xM3_stm32/stm32f103ze_stm3210e-eval/core/stage_1_boot.cpp

miosix/config/miosix_settings.h

miosix/doc/textdoc/Changelog.txt

miosix/interfaces/endianness.h

miosix/kernel/scheduler/control/control_scheduler_types.h

miosix/kernel/scheduler/edf/edf_scheduler_types.h

miosix/kernel/scheduler/priority/priority_scheduler_types.h

miosix/util/software_i2c.h

miosix/util/software_spi.h

miosix/util/version.cpp

miosix/util/version.h

miosix_np_2/nbproject/configurations.xml

testsuite.cpp