Refactoring code, which solved kmem_cache_destroy problem

- Fix bug Eter#3638 (solve some DKMS troubles)
- update sources/2.6.27 (up to 2.6.27.20)
- update sources/2.6.28 (up to 2.6.28.8)

  - source: cifs-2.6.git
  - refspec: v2.6.27-etercifs
  - commit: e9c71d0f042d04160607277155a7ce9d4a7a8108

  merge with new kernel minor version (v2.6.27.20)

  - source: cifs-2.6.git
  - refspec: v2.6.28-etercifs
  - commit: aeb70a892d3b6f2c8ba8fe7de44393714780f8dd

  merge with new kernel minor version (v2.6.28.8)

- Send SMB flush in cifs_fsync [Backport from CIFS devel git]
- Remove oplock part of Etersoft patches
- Fix bug Eter#3239 (problem while mkdir -p d1/d2)
- Fix bug Eter#3626 (cifs kmem_cache_destroy problem)

Fix bug Eter#3626 (cifs kmem_cache_destroy problem)

- Send SMB flush in cifsf_sync (Backport from CIFS devel git)
- Remove oplock part of Etersoft patches

Fix bug http://bugs.etersoft.ru/show_bug.cgi?id=3239

- CIFS_VERSION in module replaced by version of etercifs package
- update sources/2.6.27 (up to 2.6.27.15)
- update sources/2.6.28 (up to 2.6.28.4)

  - source: cifs-2.6.git
  - refspec: v2.6.28-etercifs
  - commit: 2e2987a301bcbe5927244cb557cd1252d1b326d7

merge with new kernel minor version (v2.6.28.4)

  - source: cifs-2.6.git
  - refspec: v2.6.27-etercifs
  - commit: 0aec50edbe015cb4e982dfdd9fcd2194e4de42d4

merge with new kernel minor version (v2.6.27.15)

- remove deprecated code from legacy sources
- add sources/2.6.16 from SLES10SP2 kernel with Etersoft patches (Eter#3249)
- add checking availability GNU make utility (Eter#3265)
- update sources/2.6.28 (up to 2.6.28.1)

  - source: cifs-2.6.git
  - refspec: v2.6.28-etercifs
  - commit: 9f132d1445a5a338b651b1db27b37aed3e7479e6

  merge with new kernel minor version (v2.6.28.1)

- add sources/2.6.28

  - source: cifs-2.6.git
  - refspec: v2.6.28-etercifs
  - commit: 366ed415159dac06190e4867208d1904f84e928d

- fix build in kernels 2.6.18 - 2.6.24 (may be broken after adding option "forcemand")

- minor design changes in sources code
- add docs

- update all sources: add code, that fixing bug Eter#2929
- update sources/2.6.27 (up to 2.6.27.9)

Fix bug http://bugs.etersoft.ru/show_bug.cgi?id=2929

  - source: cifs-2.6.git
  - refspec: v2.6.27-etercifs
  - commit: 5444c9f3a33daab7ef8b10bce98c6366e509f3c1

merge with new kernel minor version (v2.6.27.9)

- update all sources: add mount option "forcemand"
- update sources/2.6.27 (up to 2.6.27.8)
- additional checking for existence etercifs kernel module sources for current kernel
- add symlinks for kernel sources 2.6.16 and 2.6.17
- fix RT ticket 7479 and bug Eter#2898
- add checking the kernel configuration

Add mount option "forcemand"

  - source: cifs-2.6.git
  - refspec: v2.6.27-etercifs
  - commit: 1827b7d4082cc5aef979a6d86c7cb96f9dee2c09

merge with new kernel minor version (v2.6.27.8)

- Minor bugfix

- fixed bug Eter#2936

- removed default parameter '-o mount' for mount fstab records