check lcov existing in makefile clean rule
Merge pull request #117 from YaroslavLitvinov/lcov-fix

check lcov exists in makefile clean rule,
nvram removable behavior changed, tests, docs updated
Merge pull request #118 from YaroslavLitvinov/nvram-fix

nvram removable behavior changed, tests, docs updated
close #115, #120
Merge pull request #121 from YaroslavLitvinov/timer-fix

close #115, #120
test for getpwuid & docs updated
set home directory at session start, test updated
log improved, now short filename using in logs
fixed overflow bug, test updated
The rule 'all' must be default, instead of gcov
recursive creation of home directory if not exist
tar fixed: root filesystem archiving now available; another minor fixes
Merge pull request #125 from YaroslavLitvinov/homepath-fix

Homepath fix
readdir test added
Merge pull request #126 from YaroslavLitvinov/readdir-test

readdir test added
better test coverge for time function
fixes in codebase according to pass ne tests; overall test coverage increased; folowing tests improved: readdir,fcntl,getcwd
Merge pull request #127 from YaroslavLitvinov/sleep-fix

code coverage increased
percent of test coverage increased, some unused functions removed