Fixed issue with company details if its name has unicode chars

Also:
* fixed case of company name
* inner decorator functions are renamed to simplify stack trace analysis

Fixes bug 1202169

Change-Id: Idd7212b838fb3ae88228d513a24bf1d104d2b617
Commit overview section data is fixed

* Fixed commit counter shown in overview section
* Added company break-down in engineer details
* Garbage collector for old updates is fixed

Fixes bug 1202184

Change-Id: I91752671460a2b18f8c0cab3b1aed65d0c62641d