* Rename 'jerry_targetjs.h' to 'jerry-targetjs.h',
because we use dashes in filen ames instead of underscores.
* Made destination and js souce directory configurable.
* Updated esp8266 target to the recent changes.
* Updated mbed and mbedos5 target to the recent changes.
JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com