fixed zero gap between .text and .rodata

when .text code was on the 32 byte boundary
there was no gap between .text and .rodata sections
which was making nacl loader very unhappy
fixed that by offseting location pointer with 0x1f padding (31 bytes)
the gap between .text and .rodata should be >= 32 bytes
Merge pull request #9 from pkit/halt_sled_fix

fixed zero gap between .text and .rodata
zrt issue #96 fixed, recompile toolchain
Merge pull request #10 from YaroslavLitvinov/zrt_issue96

zrt issue #96 fixed
fixed zrt issue #76, implemented on zrt side
Merge pull request #11 from YaroslavLitvinov/zrt_issue76

fixed zrt issue #76, implemented on zrt side
zrt issue 101 fixed, ctors moved after zrt setup
Merge pull request #12 from YaroslavLitvinov/zrt_issue_101

zrt issue 101 fixed, ctors moved after zrt setup
timeout added into select, multiplexing doesn't supported
Merge pull request #13 from YaroslavLitvinov/select_nanosleep

timeout added into select, multiplexing doesn't supported
changes in getpwuid, getuid, getgid
Merge pull request #14 from YaroslavLitvinov/getpwuid

changes in getpwuid, getuid, getgid
gettimeofday fixed
Merge pull request #15 from YaroslavLitvinov/time-fix

gettimeofday fixed
zrt issue #101 fixed, now in ctors environment vars are available
Merge pull request #16 from YaroslavLitvinov/master

zrt issue #101 fixed, now in ctors environment vars are available
added postmain zcall
Merge pull request #17 from YaroslavLitvinov/master

added postmain zcall
zcall 'rename' added, implementation moved into zerovm/zrt
folowing zcalls supported: readlink, symlink, statvfs;