Merge pull request #20 from guestisp/master

Migration fix
Add panel configuration to panels table
Correct bug when create invoice for upgrade.
Merge branch 'master' of 192.168.0.24:shineisp
Add relation between server and panel
Merge remote-tracking branch 'refs/remotes/origin/master'
Added relation between servers and panel in control panel
Removed some fields
Removed fields
Takeoff currency simbol when print invoice.
Merge branch 'master' of 192.168.0.24:shineisp
Remove unneeded migrations
Merge remote-tracking branch 'refs/remotes/origin/master'
Added selectbox in server configuration that allows the choise of control panel
- setting sql fixed 

Change-Id: Id189b95cec6a7c35c525f90e80e4e39407716084
Signed-off-by: ShineISP <info@shineisp.com>
- textareas style improved 

Change-Id: I67dbafa94aca5a5f4ba9227f3e32e669cf391273
Signed-off-by: ShineISP <info@shineisp.com>
Add table to include service on type billing circle.
Merge branch 'master' of 192.168.0.24:shineisp
Add panel_id column in CustomAttributes
- added the SQL migration execution task
- minor fixes

Change-Id: Ie5fdb0cfe24ce4d241be7ccd7594f3620ed1bdf1
Signed-off-by: ShineISP <info@shineisp.com>