Tabs have been creeping in to eLua's source files, sometimes representing
2 characters, sometimes 8. This patch replaces them all with the appropriate
number of spaces, according to the context.
This only fixes files that were written specifically for eLua, not the
manufacturers' SDK source files that were simply imported into the tree.
- enable file creation, reading, writing on mbed for the built-in filesystem
- implementation currently lacks support for directory listings, this will be
added when mbed implementation details are available.
Note: this should work with other ARM arm ports that are connected to a JTAG
debugger that implements semihosting, though I have not tested it.
